GeForce 5500

I bought an AGP PNY GeFORCE FX 5500. My computer only has slots for PCI,
though, I saw an empty slot that looked as if you could add the AGP reader.
Where can I get that one and how much would it cost?

I don't really know wich one is the motherboard, but here is everything my
computer has

CPU: Intel® Celeron® D 330 Processor
Chipset: Intel® 845GV chipset
Memory: 256MB DDR (PC 2700) Expandable to 2GB
Hard Drive: 60GB HDD
Optical Drive: 52x Max CD-RW, 16x DVD-RW
Media Reader: 8-in-1 digital media manager (USB 2.0, Secure Digitalâ„¢ (SD),
Smart Media, Compact Flash, Memory Stick®, Memory Stick PRO, Micro Drive,
Multimedia Card)

Video: Intel® Extreme Graphics 3D
64MB Shared memory (WANTING TO CHANGE THIS)

Sound: AC '97 Audio
Network: Intel® PRO 10/100Mbps built-in Ethernet
Modem: 56K ITU v.92-ready Fax/Modem
Peripherals: Standard Multimedia Keyboard, 2-Button Wheel Mouse, Amplified
Stereo Speakers
Ports/Other: 5 USB 2.0 ports (1 in Media Manager; 4 in back), 1 Serial, 1
Parallel, 2 PS/2, Audio-In & Out
Dimensions: 7.25"W x 14.125"H x 16"D