I’m about to upgrade my rig. Here is a configuration. Please, help me to make a new system more balanced. Thank you in advance.
>> Current >> Upgrade
CPU >> E6750 >> Q9550
Cooler >> BOX >> Noctua NH-U12P
MB >> Asus P5Q >> Asus P5Q
RAM >> NCP DDR2 800 >> Corsair DDR2 1066
GPU >> Geforce 8800 320 MB >> ASUS EAH 5850
HDD >> Western digital 1TB black series >> Western digital 1TB black series
PSU >> 450 W >> Zalman ZM850-HP
CASE >> LianLi >> LianLi
I wouldn't waste any more money upgrading your current system. Just build a new one. You're almost there. All you need a new motherboard. Take obsidian's advice and upgrade to an i5 750. If you live near a Microcenter it's only $150. They have the Q9550 there as well for $160. If you're worried about saving money, then you can drop that Zalman down too. 850W is overkill for your system.