Lighting: You should look at MH
lighting with actinic supplement for the day/sunset/night effect. Darin at Captive Reefs (a forum sponsor) can help you in that regard as well as with many of the other drygoods you need e.g. protein skimmer.
Most people here swear by Maxi-Jet powerheads. I have 3 in my 125 on a wavemaker strip in addition to two Hagen 802 powerheads.
Sump: Plan on putting in as large a sump as you can under the tank. You can make one yourself (30 gall tank and add some baffles to it) or buy one pre-made.
You can put the heaters (2 for redundancy) and PS in the sump.
I assume that the tank is not pre-drilled so you need an overflow box to get water down to the sump. Again, you can DIY
or buy pre-made.
was considered the way to go but now there are some questions about it. CC
is generally on the way out because it's a nitrate factory unless you maintain regularly. Bare bottom is coming back into vogue especially in conjunction with a DSB
in a refugium.
Soak that up, read the Articles
. Then ask more questions. It's best to limit each post to 1 or two questions.