What should I add to my old PC to play DIABLO 3! Please Help!

shazmania

Honorable
May 7, 2012
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10,630
So I was initially going to build a WHOLE new PC, but right now cash flow is tight and I was wondering if I can run Diablo 3 sufficiently enough to enjoy it. This is my old pc specs:
Processor AMD Athlon™ 64 X2 5200+, dual core processor with AMD64 Technology
Each core operates at 2.6 GHz
2 × 1 MB L2 cache
2000 MHz system bus
Chipset NVIDIA® GeForce® 6150SE
Memory
Installed: 2048 MB DDR2, 533 MHz, (PC4200) dual channel memory (two 1024 MB DIMMs)
Expandable to: 4 GB (4 DDR2 DIMM slots)
Hard Drive 320 GB, 7200 RPM, SATA II hard drive
Video NVIDIA GeForce® 6150SE integrated graphics
Up to 128 MB of shared video memory
Power Supply 300 watt
One PCI Express ×16 (graphics interface)
One PCI Express ×1
Two PCI conventiona

I need to upgrade the VIDEO CARD, what should I get? Also, should I get 4 GIG RAM more? Please leave some links to the suggested upgrades. I prefer tigerdirect.com because I have a tigerdirect near my house where I can pick all this up! I'm in America, thanks!