I just found a very good priced graphics card on the Ariac.o.uk front page.
They say this is the worlds fastest graphics card. As far as I can see it is much more expensive at other places.
Here are the details:
Graphics NVIDIA GeForce 8800 Ultra
Graphics core 612 MHz GPU
Memory 768 MB, 384 bit DDR3
Memory bandwidth 103.68 GB/s
Memory clock 2160 MHz (effective)
Pixel pipelines 128
Ramdac (mhz) 400 MHz
Refresh rate 240 Hz Max Refresh Rate
Resolution 2048 x 1536 Max Analog
System requirements Minimum of a 500 Watt power supply
Vista ready Yes
Warranty 1 year RTB
I hope you like the deal!