True... just to let you know where I'm coming from:
1) I am using this machine for maybe some light gaming - older games, and mostly internet.
2) The GPUs were free. I was not planning on upgrading at all, my dad just gave them to me. And I'll crossfire.
3) I don't think I need a quad core.
I agree on the purchase saint19 offered on the RAM. But personally I HIGHLYYY recommend you save your money to get the parts you need without the hassle. buying cheap parts off ebay will give u nothing but grief.
Your best bet is to grow a little bit of patience, save for a bit longer, and buy your parts off newegg so you are insured quality. Remember that patience is golden, and the longer you wait, the more money you will save. Computer parts' prices drop FAST. waiting even a month can save you a lot of money.