Intel r g33 g31 express chipset family or Nvidia gt220?

GT220 is a hell of a lot better than the integrated G31 or G33 chipsets, but it's not much of a gaming card even for WOW. What is your price range and system specs? Cards like the 5670 can usually be found for a similar price and are much better gaming cards.

My price range would probably stop at around $200.
Specs-
Hp p6220a.
windows 7 home premium 64 bit.
Pentium(R) duel core CPU E5300 @ 2.60GHz (2 CPUs), ~2.60GHz
2Gb Ram
Intel (R) g33 g31 express chipset family

What is the rating of your power supply and are you stuck with low profile or do you have a full size case? Also what is the resolution of your monitor?

$200 can get you a heck of a card if you have the space and power to support it. The fact that you were recomended a GT220 makes be think you may be limited by that so thats why I suggested a 5670, but if that's not the case you may want to look at something more powerful like this:

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

I have Bestec 250w PSU
my case is full size
My screen resolution is 1600-900

You're going to need a new power supply to get much of a video card.

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

this is an inexpensive one that doesn't totally suck.

Okay say i was to buy the RAIDMAX RX-500AF 500W ATX12V / EPS12V 80 PLUS BRONZE or a similar PSU with around 500W, which graphics cards would you suggest for me within a $200 budget.
One other thing.. When buying a new PSU and graphics card.. do i need to make sure its compatible with anything else in my computers? (Making sure so i dont buy the wrong items   )