SAMSUNG Spinpoint F3 HD502HJ 500GB 7200 RPM SATA 3.0Gb/s 3.5" Internal Hard Drive -Bare Drive
Antec VP-450 450W ATX 12V v2.3 Power Supply
PowerColor AX5570 1GBD3-H Radeon HD 5570 1GB 128-bit DDR3 PCI Express 2.1 x16 HDCP Ready Video Card
Mushkin Enhanced Essentials 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10666) Dual Channel Kit Desktop Memory Model
Will upgrade to Windows 7 64 bit. What graphics card would fit with my current computer setup. Also do I need to add more RAM? Someone suggested AMD 6850, 6870, and GTX 460 before. Just want to get peoples opinions. Thank you.