Well I don't have a 75 mine is a 72g Bow but it's close enough that I thought I would reply. Here are a few pics of my tank.
I have a 20g Tall that is a dedicated fuge under the tank. An ASM G4X recirculating skimmer and a 55g frag tank that is plumbed into the system as well. I use LR, LS my fuge and the skimmer as my means of filtration. The tank has been up and running for 3 years now and is doing very well. Lighting: Dual 175MH (10K XMs) 220w VHO Actinics and 108W T5 Super Blues.
Well I don't want to tread all over the thread but yes I do have tons of pics of my setup. The stand and canopy I built myself. I built them to accomidate up to a 120 (4' tank) so that is the idea behind the extended canopy. With the bowfront I had to make legs for the front that extended past the ends of the tank. So I wrapped them in rope and there you have it.
I like Froggy's tank, I had a lot of lace rock in my tank and took it out cause it was to crowded. At this point we have the rock on both side's and a display sand bed in the middle. We've hd tank 2 yrs and a lot of our corals are fairly new. WE started with a few fish and the LPS that came on the live rock. I had a problem with mithrax crabs about 6 months ago and I ripped the whole tank apart and dug them out. I pulled 8 of those stinkers out of my tank! When I put it back together I put in a few rocks at a time to avoid spiking the tank. At this point I really like it more than before. We have 2 caves, one on each side of the tank and the fish love those. http://www.drekster.com/myrescues/salttank.htm
Pictures are there. I started adding the corals about 6 months ago so most of what I have is new.