Looks like this tank might be set up sooner than I thought. I picked up the sump, as well as some acrylic to build a sump if needed... the powerheads, and the ATO unit today. I cleaned off the powerheads (which he had running in vinegar... such a nice gesture since I didn't even ask him to... saved me a lot of trouble) and put them in my 40b with some plants in it. Man, those things have some flow. If the flow isn't what it should be, I've found that there's a plastic lip in the powerhead that can be cut out that will drastically increase the flow. I also got a shipment notification on my sand and rock, looks like it'll be here on Tuesday. Really, to get this thing set up, all I need are the plumbing parts and return pump, salt, refractometer, and RO/DI unit. I'll not need the lights for a while, but I'm still contemplating the best bulb combo (thanks Wy Renegade for bringing that up). Looking at aquacave, they have 4 ATI bulbs... the Aquablue Special, Blue Plus +, Purple Plus, and True Actinic 03 . Is some combination of those bulbs a good choice, or should I look at the Giesemanns instead?