Best low profile GPU for an older computer?

I have an older computer that I would like to be able to play some older games at high to max settings. Games like Mafia, Half Life 2, Far Cry, Tiger Woods 2005, Painkiller, F.E.A.R etc...I play at 1280x1024. I'm not concerned at all about playing games from the the last couple years this is strictly for older titles so no future proofing is needed. The system has an AMD 3200+ single core CPU with 1gb of ddr2 ram, I believe the PSU is 300 watts but I'm not postive, it's an HP office computer so obviously the PSU is not going to be able to handle anything that requires much in the way of wattage. It needs to be a low profile GPU and pci express 2.0 or earlier because I've read that 2.1 cards have issues with older machines. What would be the best card I could get around $50 that doesn't draw much power?

Just took the cover off the computer and my PSU is only 200 watts, so I'm guessing even in the low end low profile GPU category that there is not much out there that wouldn't fry this computer?

If you live in the united states this is all you should need ($20 after rebate aint bad) http://www.newegg.com/Product/Product.aspx?Item=N82E16814150544&cm_re=5450-_-14-150-544-_-ProductAs for power 200 watts should be enough (wouldn't be suprised if this video card using less than 30watts under full load based on tech reviews of not only this card but low profile cards in general)

If you live in the united states this is all you should need ($20 after rebate aint bad) http://www.newegg.com/Product/Product.aspx?Item=N82E16814150544&cm_re=5450-_-14-150-544-_-ProductAs for power 200 watts should be enough (wouldn't be suprised if this video card using less than 30watts under full load based on tech reviews of not only this card but low profile cards in general)

mastershake575

thats a 2.1 card which like i said from what I've heard (maybe I'm wrong?) have issues with old pci express 1.0 slots. If anyone can confirm that's not the case I would jump all over that if it would allow mre to play my older games at decent settings. Thanks for the input either way!

http://www.tigerdirect.com/applications/searchtools/item-details.asp?EdpNo=6932250&csid=ITD&body=MAINSame card but 2.0 which is backwards compatibile with 1.0

http://www.tigerdirect.com/applications/searchtools/item-details.asp?EdpNo=6932250&csid=ITD&body=MAINSame card but 2.0 which is backwards compatibile with 1.0

mastershake575

2.1 & 2.0 are BOTH backwards compatible with 1.0 the only ones that arent are 3.0 but those arent even here yet..