Want to buy 3-4 gtx 670/680, but not sure on the deitions?

[Kizza1234]

ok these are the prices i can get ( i currently live in hong kong due to business arrangements) so prices are a litle more...

gtx 670

evga sc 4gb $550 (get 3 then possibly 4 later)

zotac 4gb $500 (get 3 then possibly 4 later)

nvida stock 2gb $360 (could get 4 now )
..................................
gtx 680

icolor gtx 680 igame kudan 2gb $720 (google it http://www.techpowerup.com/162993/Colorful-Giving-GeForce-GTX-680-iGame-Kudan-Treatment.html ( i would only get 2 of these beasts ( 3 slot cards)

4gb gtx 680 ice dragon inno3d $630 (can only get 3 cause they are 3 slot cards)

will be using 1920x1080 (3 way) surround will possible 3d in future

so what do i buy? the cheaper the better, but i also want my pefromance

oh and i currently have:
rampage iv extreme w/ i7 3770k
enermax 1050w 85+ gold
segotep t1 (google image it)
16gb ripjawz 2133
120 ocz agility 3
500gb seagate 7200rpm
acer 24" 1920x1080 surround
2x 6950 1gb xfx duel fan (got each for $200 1 year ago

 

[Ohmybad]

id go with any of the 4gb 670's, since you're going for 3-4 they're going to scream.

 

[fantastik250]

I'd go with EVGA because they are a good company.

 

[Kizza1234]

thanks guys, but that doesnt really answer my question, im some idiot, i know the potential of all of the above. iv done my research. what im looking for is an experts opion, maybe someone who knows more than 3dguru charts