People can make all kinds of suggestions, but it boils down to the amount of space you have. i.e. height-width being the most important.
Here's some tanks that have cool features:
There's also a smaller sized tank several people here at TPT(club) have setup that is longer and still small(
Can't remember the exact size though). Do a search for nano sized here if you have not already done so.
Personally I like making aquariums for this type of situation then the lighting and filtration can fit where I want it to.
Here's the other size I did not remember: http://www.plantedtank.net/forums/sh...d.php?t=168088