Good question! I am thinking SA or CA cichlids as I haven't kept any (besides Angels) for years and years. Even if it isn't perfect it would make a good grow-out tank.
Right now I am out of room for new tanks in the house, so it will have to wait until I get my garage redone this summer vacation. I already have a couple tanks in the garage and my wife has a workout area that I can't mess with. My plan is to move out some storage shelves and build a "Wall of Fish" against the back wall.
And to everyone who has mentioned how lucky I am, being a school teacher isn't well-paid by any means, but it has its perks. I got this tank for free from a veterinary college a few years ago.