I need to know what are some good video cards and what power supply I need to run it (how many watts)I need a pci card
I wouldn't worry about whether your power supply can handle a PCI card or not. You're not gonna turn that system into a decent gamer with a standard PCI card no matter how much you spend. You *should* be able to play some older games if you upgrade the graphics, but you won't be able to play any recent releases. Here's your system specs:
http://support.dell.com/support/edo...
The following X1300 was mentioned in another thread the other day. It has a DMS-59 connector but comes with an adapter for DVI. For $15, you can't go wrong:
http://www.geeks.com/details.asp?in...
Here's the exact same card from Dell for $110: