I don't know what I need or should get but I'll give you an idea of what I have noobishly composed:
CPU: i7 3820
MOBO: ASUS Sabertooth x79
PSU: Corsair AX 1200i
RAM: Corsair DOM 32G GT
VID: EVGA GTX 660 2g (x2)
SSD: Corsair SSD 90G SATA III
HHD: WD Rap 10k 250G
OS: Win 7 Pro 64B
Case, MSE, KYBD
LoL, ..... 2400

MOBO+CPU combo, supports Dual @ x16 cards compat w/ EVGA GTX SLI. I feel that although hardware outdates fast, this will have a long life software wise, especially gaming. But again, i'm noob comp builder.
Has amazing features and eye candy, it's a lot but thats what my school loans are for. I've gone through a lot of reviews, and i prefer intel, nvidia, asus.
I would appreciate positive criticism to help build a new comp for ESO. Thank you
