If you still have the chance, I suggest you to get a refund. No way you going to break-even. You can use the calculator here mining.thegenesisblock.com/
It´s already been shipped now and started mining yesterday. So well, it might be possible, might be a bit ugly ...
But since i paid like 1300$ for the 60GHs i still got a reasonable chance to break even. If the next difficulty increase is less than 20% pretty certainly, otherwise not quite ...
On the other hand i also have 16 "chip credits" for that order as well at BFL, at nominal discout of 25$ per credit that would theoreticly be 400$. Dunno if anyone actually buys those credits given the current saturation, but if anyone wants them at, say, 70% of nominal value, it would gladly part with them.
Edit: Didnt notice that difficulty increase from October 6th yet, meh, not likely to break even. Not unless a majority of the miners are very low quality and break down soon.