I bought a used t5 nova extreme unit (4x39w). It comes with everything but 2 bulbs. It says its in working condition and has a refund on it if it doesnt work and is not as described. It should hopefully be arriving sometime next week. I read up on the unit and read a bunch of reviews and scanned a few forums about it. It seems to be a decent entry level unit for what I plan to use it for, only thing I read about it that was an issue is that the original bubls it comes with are not that great and you should buy better bulbs (which I already have to get 2 new ones anyways). So we will see. This was the best deal for my wallet. I checked craigslist first to look for any good units, I found a few but they were for 100-200gal+ tanks or 10-20gal tanks, neither size would fit my tank correctly.
As for the live rock, I was told before to look on craigslist but yes I do have a slight idea as to what to look for but not good enough to avoid problems that may come with someones live rock. I am going to be getting my live rock from NE. As for aptasia, I already know to avoid it, I also understand that if for some reason I do aquire it, then peppermint shrimp will eat it, and controll it. I also know that the shrimp can only handle what their size can handle. Obviously I would hope it does not ever end up in my tank. I am slowly learning.
As for sump, any ideas on filter media will def. be taken into consideration. Its a good point that with live rock things may get caught in the pump. I was planning to put ceramic rings in the sump as well, any thoughts?