But I dont know if my motherboard would be compatible with them. According to belarc advisor my motherboard model is MICRO-STAR INTERNATIONAL CO., LTD MS-7502 Fab D
As for the graphics card right now I am considering getting a 6850. Is this worth the money and also what kind of psu do i need to run it?
More aboutgraphics card upgrade
You can't get ddr3 ram on a ddr2 motherboard. You will also need to find 1gb sticks, because your motherboard does not support more than 2gb per slot. Also a 500w power supply would be great for a 6850.