Thank you guys for your advice. It is much appreciated. I ended up not going with either of the ones I listed in the OP, but instead paid less than $15 for a 200 Gh/s miner.
Thanks again!
Sounds like you got a pretty good deal. You'll definitely be able to ROI with that in less than a month.
That would depend upon the J/GH of the miner and the cost of electricity. Breaking even in less than a month is highly unlikely.