i've seen the 256mb 6600gt's around on ebay for about £70-80
good thing about them is they can output hdtv through dvi at proper resolutions, so you would be ok it you have or were to purchase an HDTV and wanted to run your computer through it
Ive got an amd xp clocked @ 2600+ and 512ddr ram (333mhz).
I wish to buy a gfx card _just_ to play hl2 on and my agp gf3 ti200 doesnt quite cut the mustard.
I live in the UK and dont want to spend anymore than £80 (although cheaper is fine!).
Im reserved about asking people in shops as i dont trust their knowledge.