Can I procure a appropriate graphics card for smaller number than $160 or smaller number?

I would prefer to buy them contained by person so i am controlled to best buy, circuit city, radio shack, wal-mart, target, compusa. But its fine if i buy online. what are some good graphics card for 160 or smaller number. I have a HP Media Center beside an intel P4 3.06 Ghz, and 504 mb ram

Can I procure a appropriate graphics card for smaller number than $160 or smaller number?

On newegg.com you can bring back a geforce 7600gt for under $100 which is an awesome card. But thats for PCIe. You involve to see what kind of slots you enjoy available.
You can only use graphics cards authorized by HP, usually from HP.