Upgrading!!!!

[sunken123]

hi every one heres my situation system in sig
here my plan i wanna sell my motherbord,psu,ram,gpus to someone of my place but im not sure of the price to sell at. here the price each thing sells for where i live.
motherbord=259.99
gpus=180each(yea i know they cost alot)
ram=118.99
psu-119.99

I want to upgrade to this
-a good single card motherbord wich suport pcie2.0,ddr3 12800,socket 775 and does well in overclocking saw this one maybe...http://www.tigerdirect.ca/applications/SearchTools/item-details.asp?EdpNo=3720517&Sku=I69-2164

-gpu ati 4870(when released) and after 4870x2 when released

-ram any good 2gb-4gb kit ddr3 12800 saw those. http://www.directcanada.com/products/?sku=15380BD2865 (also is there a good benefit from 2gb to 4gb)

-i choosed an ultrax3 but i dont think ill need this mutch power...but for sure i need a psu whit a 6 and 8 pin pcie cable

so do you guys got any advice the price i should sell(by the way all parts are not even 4 month old) and wath should i buy considering ill never go again sli or crossfire and i believe more in single gpu solution.

Thanks for any advice