It's a nice price but please be aware that the price may end up being like $350. I know they have a link to $60 in rebates but apparently you cannot do a rebate for each card so you may only get $40 back.
This is a very hot deal imo, I have rarely (if at all?) seen 660ti's fall below $200. You are getting 2 for under $400 plus an 8gb ram stick. That is hot in itself, then you get 2 $40 rebates (one msi, one corsair) and two copies of batman arkhum origins which you can sell as well.
They may be a non-reference pcb and not the best cooler but it looks like a great deal to me.
Now the question is how does this compare to my old gtx 480
Mostly I care about running as many monitors as possible per individual card (@ 2650xXXXX) resolution.. maybe even 4k? From what I have seen I will have to wait for new hdmi.. or buy some tv that needs two hdmi inputs?