tank:
I prefer shallow and deep tanks to tall and narrow, namely because I plan on installing an acrylic divider in the tank for a refugium, and shallow tanks need less light. I would strongly consider a cube tank. I want the setup to be simple and want all the equipment in the tank itself and do not want hang on the back equipment or overflows to a sump. I would consider an acrylic tank so I can install bulkheads to facilitate this.
light: for an geisman or aquamedic style hanging pendant, 24" with a single 150 or 250 DE HQI, LED moonlites, and prefeberly room for a CF actinic.
chiller: nano style peltier device chiller
skimmer:none unless i have problems down the road
wave device: any junk oscillating powerhead
top-off: inverted 1 gallon jug :-)
budget: up to $700 depending on setup
heater: any
I'm really trying to go simple this time around. i had pretty involved setups in the past with float switches, calcium reactors, and controllers but it was jut overboard. KISS is my concept going forward now. I would but a complete new setup package online but nearly all those i have seen come with a hood and CF lighting and i want this tank open to the air because of the halide lighting