Dell gx270- help me to find descent mid range Graphics card. Please.

Hi I have dell optiplex gx270 'Small Desktop Computer'[http://support.dell.com/support/edocs/systems/opgx270/en/ug/index.htm].

I know its old comp but for me the overall system speed is fine. Its just that sometimes when I get bored from work I want to play games but my comp sucks in this area.

So I wanted help. If any one could suggest a descent graphics card which can atleast play games like Torchlight at descent settings, then it would be great.
I visited some forums and I think I would have to upgrade my comp's power supply if I want to install a descent AGP card. Also the AGP card has to be 'low profile'

Please help. My max budget is $180-200.

Thanks.

PS. If anyone wants a full system summary then I can post it online.

it looks as though that machine still uses an AGP slot. thats pretty old technology and you will be paying a large amount for inferior performance. your options are also quite limited as well.

I cannot recommend upgrading your graphics card when building a new machine would be a better investment of your hard earned money...

Really thanks a lot customisbetter and tortnotes for the advise. Tortnotes I checked out the link but it is for 64bit AGP card while my comp only supports 32bit AGP.

I just bought this comp secondhand for $80. I have no problems except that I cant play any descent games on it.

after searching on the net for my options I think I will get a new system which can play atleast mid level games at medium settings.

Although thanks for your time and advise.