What gpu should i get

motherboard?
PSU, what brand?
resolution?
budget?

psu brand: corsair

resolution: well i have a small vga screen so like 1024x768

budget:like about £70

You should definetly go for Radeon 4670.
It will be great for you
However, if you can arrange some more, I strongly recommend GTS 250 or Radeon 5750.

Both these will come handy in long run


GOOD LUCk

safe a little bit more and go for HD5750...  

For your budget
http://www.overclockers.co.uk/showproduct.php?prodid=GX...
or
http://www.overclockers.co.uk/showproduct.php?prodid=GX...
Either should be pretty great for your resolution.

Get a GTS 250 or HD 5750.

For your resolution, I recommend you to go for 4670 HD.



It will perform exceptionally at 1280x768

I wouldn't say exceptionally, but it will be pretty good.

definetly crossfire a pair of 5970s hahahaha. love it.

i'd say the way to go is either an HD 5670, or an HD4770. i think that's in your budget, but i'm not sure what the prices on UK i don't use pounds.

5670 is a fair bit better than a 4670 and it'll give you directx11 support for the future (recommended if you have windows 7)
4770 is a bit better than a 5670, no directx11.

reason why i recommend these is in case you upgrade to a monitor with 1680 x 1050, which is the next level up from yours as far as resolutions go (if you go any big you'd have to get a different card), so i'd say that one of these 2 cards hits the soft spot.
find a sale and buy, whichever is cheaper is probably the one i'd go for.

The HD4770 is more than a bit better than the HD5670, it's approximately 25% better. When shopping for a bargain card I don't think the HD5670 makes much sense. You want as much performance as your limited budget can provide.