HP xw4400 graphics card suggestions?

[starbuckroad]

I've had this computer for a year or two and want to either upgrade the graphics card or build a new system HD video can be choppy. I paid about $250 for it so I'm not looking to spend much. I'm using a 30" tv as a monitor and a small lcd screen as a second (using vga cables but the tv has HDMI ports). The computer has a pcie x16 slot probably 1.0. I like using dual monitors, needs to run HD video, starcraft2 and solidworks on xp. Any suggestions for a cheap graphics card I could get on Amazon or ebay?

http://h10010.www1.hp.com/wwpc/ca/en/sm/WF06b/12132708-12132710-12132712-12132712-12132712-12581458-80698630.html

Operating System : Ubuntu 11.04
Kernel : Linux 2.6.38-8-generic (x86_64)
Processor : 2x Intel(R) Core(TM)2 CPU 6400 @ 2.13GHz
Memory : 4056MB (1179MB used) (error checking)
Graphics Processor: Quadro FX 1500 (256mb)
Resolution : 1360x768 pixel
drive: segate ATA ST3160812AS

[mips]

Any suggestions for a cheap graphics card I could get on Amazon or ebay?

Budget?

[LowSky]

Power supply is the biggest concern. you can't really get anything that requires additional power connection.

The best idea is to get a lower model card, like an Nvidia 240 or 520 from any number of vendors.

[starbuckroad]

Thanks for the input I'm going to look for a good deal on a Nvidia 520 it looks like they go for about $100 new I may take a shot at one from ebay.