A preface: Not sure if my current computer is worth upgrading or if I should just start over so i'm looking for help! If it is worth upgrading I'd also like advice on the part that would give me the most results for games like SWTOR and WoW.
Mobo: ASUSTek M3A (AM2+ socket)
CPU: AMD Athlon 64 X2 Dual core processor 6000+
RAM: 2 kingston 2g ddr2 400 mhz and 1 kingston 1g ddr2 400 mhz
HDD: 500gb Seagate (can get more information on this later)
GPU: NVIDIA Geforce 9600 GT 512mb