Hi there, Hoping to get some help on a couple of upgrades I am considering for my 4 yr old desktop, homebuilt machine. I dont know much about this so here goes: My machine has a Gigabyte EP45-UD3P mobu, a core duo 3.o GHZ E8400, 8GB RAM , a Geforce 9800GT GPU, and a 700w power supply. All of this in a Raidmax dirk-tooth ( pretty big) case. I'd like to keep this thing going for a couple more years so what do you think about upgrading to a core quad chip ? and maybe a better GPU / OR how about running two 9800gt's ? ( I think the mobu can handle this ) . I ma running Windows 7 home premium ( 64 bit) Thanks in advance !