You won't notice a difference by upgrading just the ram. I recommend you upgrade the cpu instead. Look for a used one in one of the hardware forums or on craigslist. Also check your asus board "cpu support" section first to see what the board supports. If your board won't support the e series or q series core2 duos or quads, then a motherboard change with the cpu will be required for any real performance gain.
thanks for the help might look at just getting a new setup and seeing what i get for this one