Very impressive tank!
I had 2xAfrican Dwarf Frogs back in Dec 2009 (xmas gift) - they came in a little plastic box with about 24 ounces of water and a piece of lucky bamboo. My MIL thought it would be a cool gift (which was right), but as soon as I got them home I read that they need ~10g minimum to be happy. Needless to say - that's what kickstarted my aquarium (*cough* /taps vein/ *cough*) habit.
A little over a year later, I have my original 12g, a 65g just starting out, and I'm scheming with a buddy to buy his 37g tall from him. They are like potato chips, you can't have just one!