Wow! What a wonderful inspiration for my 75g as I get it set up. I like many of the same fish as you do, most especially the dwarf cichlids and roseline sharks.
I just skimmed the posts in the thread (so mesmerized by your tank!), but I can see that I can use a lot of the info in here.
I'm curious about how you have your filters set up. I see the two spray bars in the back. So that's the output. Where are the intakes? I have my Eheim canister right now, but I was thinking of adding an XP4 to it. I also hope to have a high stock of fish so filtration is very important to me.
BTW, I also took note of your old ID. Seems we have even more in common as I've had several Macs since 1986!
I hope you don't mind if I copy some of what you've done. My design may be different, but I will definitely learn from you!