Upgrading from integrated chipset to video card

I wanted to upgrade my video card to get better gaming performance and i currently have a integrated chipset.

Graphics Controller

* Type Integrated
* Graphics Processor / Vendor Intel GMA 900
* Video Memory 224.0 MB (max) Dynamic Video Memory Technology 3.0
Expansion / Connectivity

* Expansion Bays Total (Free)
3.0 ( 1.0 ) x Front accessible - 5.25" x 1/2H , 2.0 ( 1.0 ) x Internal - 3.5" x 1/3H , 2.0 ( 2.0 ) x Front accessible - 3.5" x 1/3H

* Expansion Slots Total (Free)
1.0 ( 1.0 ) x CompactFlash Card - DIMM 184-pin , 4.0 ( 1.0 ) x Memory - LGA775 Socket , 1.0 ( 1.0 ) x PCI Express x1 , 1.0 ( 1.0 ) x Processor , 1.0 ( 1.0 ) x SD Memory Card , 1.0 ( 1.0 ) x PCI Express x16 , 3.0 ( 0.0 ) x SmartMedia Card , 1.0 ( 1.0 ) x Memory Stick , 1.0 ( 2.0 ) x PCI

* Interfaces
2.0 x Audio - Line-out - 4 pin USB Type A , 1.0 x Headphones - Generic - Mini-phone stereo 3.5 mm , 1.0 x Keyboard - Generic - 15 pin HD D-Sub (HD-15) , 4.0 x IEEE 1394 (FireWire) - Output - 25 pin D-Sub (DB-25) , 1.0 x Microphone - RS-232 - Mini-phone stereo 3.5 mm , 1.0 x Display / video - Input - Mini-phone 3.5 mm , 1.0 x Audio - VGA - 6 pin mini-DIN (PS/2 style) , 2.0 x Hi-Speed USB - IEEE 1284 (EPP/ECP) - 6 pin FireWire , 1.0 x Parallel - Line-in - Mini-phone stereo 3.5 mm , 7.0 x Serial - 6 pin mini-DIN (PS/2 style) , 1.0 x Mouse - 9 pin D-Sub (DB-9)

My computer is a 832gm and i already upgraded the power supply and added 2gb of ram, i was wondering what the best choice for a video card for my computer would be or if i can even upgrade the video card from a integrated chipset because i tried to before and i had to send the video card back because i was having problems. Any help is appreciated thank you.

http://www.newegg.com/Product/Prod [...] 6817182185

That is the power supply i currently have in my computer.

Based on: http://support.gateway.com/s/MOTHE [...] sp24.shtml

The best I would recommends is a 4670 or a 9600GT. If that is your pc on the link, then most likely you'd have a P4 or P4-HT processor which would bottleneck cards such as the 9800GT, 4770 and higher models.