If the 5570 is all you can afford, then that's fine, though I would save up a bit more for something better.
@ renz96 : Yes...
Where will you be buying your card from? Outside of the US?
Im in INDIA...
people decide on cards depending on their needs. at low resolution even 5570 is sufficient for playing games. just don't expect it will run the game flawlessly especially the one that very GPU intensive such as crysis or metro. if you don't game much or does not play games at all then 5570 should be perfect for you. but if you do have gaming in mind then something like 5670 is much better to have if you can afford it. it all depends on you on much you can spend for the cards.