Ooh Kaz I want Discus. Nice tank!
I am fishless at the moment
For years I bred African Cichlids (not sure if I want to do that again - they were neat fish but so aggressive!) Last count before we sold all the tanks:
55. gal (pseudotropheus kenyii)
55 gal (tropheus duboisi)
75 gal (labeotropheus fuelleborni and trewavase)
80 gal (tropheus moorii, wild-caught fish)
125 gal (duboisi and kenyii - easily my favorite tank, those fish looked so cool)
250 gal (our "display" tank. we had several species coexisting in this one)
I also had about 5 10-20 gallon tanks set up for the growing fry (cichlids are cannibalistic little monsters, especially my kenyii. If they fry would fit in the dominant male's mouth, they'd get eaten.
Oh, and I had a 30 gal for my corys and plecos, since I found out that the cichlids (all but the duboisi who were pretty peaceful) would eat them.
I've been wanting another medium-sized tank, maybe later this year I'll set one up.