no problem
these guys I linked earlier are working with AMD to help them resolve there issues
http://www.pcper.com/reviews/Graphics-Cards/Frame-Rating-Catalyst-138-Brings-Frame-Pacing-AMD-Radeon
and this was before the most recent driver beta 2
SLI is a better solution right now just not by very much and it is getting to the point where there is no discerable difference in game playing.
It is not like SLI does not have microstuttering also. It is just below a threshold that we can notice. so where is that exact threshold of runt frames or microstuttering at. looking at all of the real world test of in game play the graph look very close.
the new beta 2 drivers continue to improve the crossfire solution.
I think that you really need to consider what your CPU will be able to push and what type of gaming you are going to be doing.
http://www.anandtech.com/show/6934/choosing-a-gaming-cpu-single-multigpu-at-1440p/7
here is a good article describing CPU bottlenecks with all sorts of charts.
I think you get a less expensive card that you can SLI/CF later and save up and get an i5, i7.
either what i said above or you get that 770, this is about as high as you can go for GPU