Dude! You have to get an exotic pleco! Those things are sooo cool!! Like a gold nugget pleco, mango pleco, flash pleco.....etc.
And get some fish that dont grow very large like south american cichlids... Just dont get large fish like oscars (especially red devil cichlids! They are waaaay to aggressive), it gets a little boring just to see less than 5 fish in the tank... So i would go for gouramis, SA cichlids, bichirs, plecos, and some eclipse or pictus catfish!
U have a great wife... Ur so lucky u got that tank..