Processor Intel Core i7 CPU 860 @ 2.80GHz
Memory (RAM) 8.00 GB 7.5
ATI Radeon HD 5700 Series 6.8
Gaming graphics 4843 MB Total available graphics memory
I've been thinking of upping my performance some, and aside from getting a SATA drive (which I'm not sure I should upgrade even though the Windows Index thing is 5.9), which component upgrade would give me the biggest bump in performance?