Why do you want to change from what you have ?
You cant really get more commutish than your current ride . . .
You can commute on anything. Really, ANYTHING !
Ive commuted 10-15 mile, 1w commutes on eerything from folders to fixies,
it's all good. If you have 1000, i'd look for something comfortable, first and
foremost, no matter what is is, and modify from there . . . Enclosed hub,
fenders(?), mirror, etc and my most important item of all, after the one of
comfort, is bulletproof tires and rims. So in summation, comfort, simplicity,
bulletproof tires and rims---- Can easily be done to almost anything with
the amount of money you want to spend !

Great hunting and be safe !
LM in KY