I hope this is a good place to ask this question, but I am just doing this as a hobby, and have just got some ASIC's set up, one BFL Jalepeno, and 2 Antminer U1's, I know its fairly small at the moment, but would like to hear what you guys thing would be good hardware to start picking up.

Right now I am thinking more Antminer's as the BFL's seem over priced for the rate it pulls.  But just started reading about the Gridspeed infinity USB but not sure I know how those are set up/powered.  Any help is greatly appreciated.

This is the set up im looking to grab(http://hashra.com/gridseed-3-mh-s-scrypt-sha-miner-including-psu-accessories/), and think it will be fun to learn and set up, is it a good idea? or is there a better value out there? can they bought by themselves?  Sorry for all the questions.