Thanks Brandon, I have been looking at scrypt mining also, and am just using this as an excuse to spend more time in my office with my computers and toys. I don't really expect to make any real money from this or at least turn a measurable profit. I do have an abundance of PSU's laying around in the 750-1200watt range.
I will look more into the Asicminer Cube, and the S1.
The only other ones I have looked at have been the Blockerupter blades. But those still seem a bit high per Ghash.
I do appreciate all of that info, I have basically just left my Jalapeno running on another pool for a pretty long time and am just now getting the time to start reading and planning for a bigger mining rig. It is some time off but I would like to hit 500-700 Ghash within the next month or so.
3 Antminers would currently be the only way to go if you're hoping to get above 500GHs without breaking the bank. I don't think you could even buy secondhand gear for less money.
ASICMiner may soon have some exciting new miners. But this is a game where waiting is deadly to your income. If I was just getting into mining now I might just start with the first wave of Gridseed Scrypt ASIC miners and skip Bitcoin mining altogether.