^Just a thought - unless you plan on buying a SATA3 Crucial C300 128/256+ GB SSD then I wouldn't "upgrade." In fact your overall performance will go down. If you really need USB 3 then buy an add-on card instead.
Well see, I'm not getting an L3(or was it 2) Cache or something because my Processor is AM3 and my motherboard is only AM2+. From what i've read L3 catch is better but performancewise I dont know how much, all i see when I read about it are number representations such as 6mb. I was wandering, would I also not get a performance boost from going from a sata2 to a sata3? I know i'm gonna need to buy new hhd or sdd drives for this? Could you or maybe someone else elaborate on this?
Nope, that AM3 CPU works the same in AM3 or AM2+ mobos. DDR3 isn't better than DDR2. As jaquith said, you don't need SATA3 unless you have a SSD, any regular HDD will work the same on SATA2 and SATA3. Even if you buy a SSD that won't help you in gaming, only in booting time.