PLEASE HELP !

Hi. type of low profile card should I get for a Dell Optiplex 760 ?...PCI...AgP ?

Can you guys tell me what would be my best option ? I understand this isn't a killer machine, but it's all I got. Would any cards allow me to play 3d games ? What one's best ? Any good memory upgrades too ? Here's a quick shot of the system-

Power supply will be an issue. I have a small form factor and don't really know where I could find an upgradable power supply...I guess that would be micro atx ? If the card you recommend, needs its own power source, than can you please also recommend a power supply that would fit in the optiplex SFF case ? Im pretty sure that this doesn't come with extra power cables.


Operating System System Model
Windows XP Professional Service Pack 3 (build 2600)
Install Language: English (United States)
System Locale: English (United States) Dell Inc. OptiPlex 760
Enclosure Type: Desktop
Processor a Main Circuit Board b
2.60 gigahertz Intel Pentium Dual-Core
64 kilobyte primary memory cache
2048 kilobyte secondary memory cache
64-bit ready
Multi-core (2 total)
Not hyper-threaded Board: Dell Inc. 0R230R A00
Bus Clock: 800 megahertz
BIOS: Dell Inc. A03 04/29/2009
Drives Memory Modules c,d
79.84 Gigabytes Usable Hard Drive Capacity
25.45 Gigabytes Hard Drive Free Space
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Slot 'DIMM_1' has 1024 MB
Slot 'DIMM_3' is Empty
Slot 'DIMM_2' has 1024 MB will be an issue.

Yes I understand that.