Hey NeoLiot, if you are going to buy a decent PS3 or Xbox controller you will spend something like R$ 150,00, you can buy a wheel like
this , I think it's better than any other controller.
I have this one, and I play GT5P (on PS3) and Race07 and GT2 pretty well with it. I'll be buying a new wheel, but now I want a top one like G27, so I'm justing searcing fot a great deal to buy it here in Brazil.
It's not the best one, for sure, but it's not the worst ones (like Clone or Leadership). I just don't use the paddle shift on the back of the wheel I use the two buttons in front of it, as they seems a lot of fragile and I don't want it to break. It does not have FF, and it's a big big fail!!!
If you live near São José dos Campos I can lend you mine, so you can try it...
Just an idea...
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Rocker