Ronaldo will put the finishing touches on his move from Manchester United on Monday night when he is officially unveiled as the Spanish giants' latest signing.

Kaka and Raul Albiol have already been presented following their respective moves from AC Milan and Valencia, while Lyon striker Karim Benzema is close to completing his switch to Madrid as the Primera Division outfit's spending spree rapidly approaches the £200million mark.

It is the signing of Ronaldo that has captured everyone's attention and imagination, though, as Madrid finally got their man this summer to end a transfer saga that has lasted more than two years.

It took an astronomical fee to persuade United to part with the FIFA World Player of the Year, and Madrid have come in for a fair amount of criticism from both inside and outside the footballing community for spending so much money in the current global financial crisis.

However, Ronaldo believes Madrid are justified in paying the fee - and also feels he can live up to the price tag.

"I think that it's a fair figure. If Manchester United and Real Madrid agree this amount, then there is nothing more to say," he told Marca.

"The great players cost a lot of money, and if you want them you have to pay it. I'm happy to be the most expensive player in the world."

In response to those who have qualms about so much money being spent on one footballer, he added: "I respect everyone's opinions, but I don't agree with these people.

"If Real Madrid have paid so much money, it's because they wanted me and have considered it a fair price.

"I'm going to try to do everything in my hands to play very well and I will show that the money they are paying for me has been a good decision."

Ronaldo is the centrepiece of Florentino Perez's Madrid revolution, as the returning president looks to take the fallen giants back to the top of the footballing tree.

Last season Madrid had to watch on in envy as arch rivals Barcelona won an unprecedented treble of Primera Division, Copa del Rey and Champions League - and it has been a long time since the Whites made any waves in Europe.

Not once in the last five years have nine-time European champions Madrid managed to get past the last 16 in the Champions League - and with next season's final being held at the Bernabeu, they will be desperate to go all the way.

Much will be demanded of Ronaldo, but the Portugal international is confident he can deal with the expectations.

"I've been used to having pressure for a long time. In this sense I'm calm," he said.

"This (price tag) isn't something I'm going to think about when I go out on to the pitch, so it's not going to affect me.

"I know that they are going to demand a lot of me to be successful at the club and I know that I'm going to have much more pressure than at Manchester United, because I was there for many years. But it means a new challenge and is going to help me be the best footballer.

"As well as that, Spain is a different league - with different players, a different club - and this is going to motivate me to continue working hard and winning things."

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Madrid's pursuit of long-time target Ronaldo reached fever pitch last summer when barely a day went by without a story in the media linking the former Sporting Lisbon player to the Primera Division outfit.

At one point it looked as though Ronaldo was certain to leave Old Trafford, but the 24-year-old ended up staying and helped United retain their Premier League title and reach the final of the Champions League.

Asked why he did not sign for Madrid last summer, Ronaldo said: "All the big players have to live with speculation.

"Last summer a lot of things were written, but life is like that. Simply, I decided to wait a season more and I think that I took the correct decision."

Ronaldo has never hidden his desire to one day play for Madrid, and he admits it came as something of a relief when the move was finally confirmed this summer.

"It was an indescribable feeling. Honestly, I felt very relieved. Things had finally been resolved and I was very happy, because everybody knew what I wanted: to play at Real Madrid," he said.

"When I signed for Manchester United, I was eager to play there for their history and for all the titles that they'd won.

"But I also hoped to some day play at Real Madrid, because they`ve always had great players. Now, I can say that I have fulfilled a dream to be part of the two best clubs in the world.

"My aim is to go down in history as one of the best (players). If in the end there is the possibility of me being the best, then perfect - although what I want to be in the club of the best players in history."

Ronaldo will become the third new arrival to be presented since Perez returned to the Madrid presidency at the start of June.

Tuesday's unveiling of Kaka saw a huge media contingent and around 55,000 people turn up at the Bernabeu to welcome the Brazilian.

That is all set to be dwarfed on Monday night, though, when Ronaldo is introduced, with suggestions that there will not be an empty seat in the house.

"It will be a very special day for my family, for my friends and, of course, for me. I only hope that things go well," said Ronaldo, who watched Kaka's presentation on television.

"It was something impressive, magical, marvellous. I've seen many games where there has not been so many people in the stands.

"I don't think Kaka will ever forget that day. I hope I can experience a day as nice as he did. To have 40,000, 50,000 or 60,000 people at your presentation is something incredible and special."

He added: "I know that it's going to be a great moment in my life."