I have another question..
Does it really matters which manufacturer i choose?
ive always preffered to buy known companies like asus or BFG...
but ive found a good priced GTX570 from EVGA and im wondering....
thanks to every 1 for the replies!
Now for my answers:
1. I did recently bought a UPS
2. I did overclock the CPU once to 3.0 (maximum stability i could get)
3. The resolution for now is 1280x1024... but ill get a 1080 24' LED as soon as i get the card.
4. Budget is unknown but it can be pretty good (no overkill though)
For 1080p I wouldn't go less than a GTX460 768mb, or 1gb for just a bit more money. Higher than that, I'd suggest GTX470, Radeon 6870, Radeon 6950, GTX570, Radeon 6970. Whichever you can spend the cash on. I don't think you'll need a new PSU for any of those.