cyteen,
Thanks a lot for those suggestions! A lot of the small stuff like buffering solution pumps I didn't think of.
I still have a very simple setup and plan to add lights first. I'll probably just do CFL's (any maybe 3W LEDs later) so there's little worry about burning plants as there would be with MH or HPS bulbs.
Thanks for the tip about the new Fonera and its USB port, that could indeed be very useful. I'm just for now trying to use what I have.
Thanks again!