Actually the 55 will be end-targetted for keeping some african cichlids

Here's my plan:
Move and sell my 20gal + buy the 55g. The GT's growth will slow down once it hits about 6" or so, which will buy me some time before going out and buying a 72/75/90 (48x18" footprint) once I get settled. I can go out and buy the 55 today if I wanted to, but I figured it would be a lot easier to move the 20g instead of a 44 or if all goes well, have the 55 filled and ready to go at the new place before tearing down the 20 where I am now.
I'm going to be ordering some filters, heaters and other supplies in a week or so in anticipation of getting the 55 (and larger down the road). I think I'll be ordering 2 ac300's and a few titanium heaters + some good quality food (Hikari gold) and a python for water changes.
Once I get settled and my girlfriend pays back some money she owes me + sell off an older guitar amp, I'll get working on getting a 90gal up and running. The largest hurdle with that will be getting a stand made.
Which will leave me with a 55gal open for some mbuna

I figure 4 each of labidochromis caeruleus + iodotropheus sprengerae + hongi red tops (another labidochromis species) should go well in the 55g.
At least with the slow growth rate of GTs once they hit 6" or so should give me time. The fun part will be to figure out what to put in with it for the larger tank. If I go with the 90, I should be able to put in an Oscar, Texas, Severum or Jack Dempsey...depending on the GT's temperament.
How's that sound for a plan ?