From what I've been gathering, BFL is a total scam, so I have been looking at KnC and ASIC Miner. However, there is a little bird going around claiming that there is another company called HashFast that is coming out with some good hardware. Hmmm..... Any thoughts?
[[If you don't know what I'm talking about, please refer to "Custom Hardware".... Mining > Hardware > Custom Hardware. ]]
BFL may not know how to give accurate estimates (definitely an understatement) but they are definitely producing bitcoin mining hardware. I can't vouch for the quality of the ASIC hardware but their FPGAs are decent.
As for other ASIC miners/manufacturers, BitFury seems legit. Don't know anything about HashFast though.