If I get windows 7 64 bit, would you recommend me upgrading my 4gb ram to 8gb? I have the q9550.. and it's still stock speeds, however with 8gb ram will I be able to do some slight overclock? BTW doesn't the more ram you the slower and more errors you will get? Like isn't that what ECC technology is for? So is it best for me to stay with 4gb ram since I can't support ECC technology? Or is it only for ram that's a lot? How much GBs of ram may a lot be? Thanks.