I'm looking for a nice set of robes (without a hood), gloves and boots to wear and enchant on my mage. I wanted to use Black Robes but I don't know what gloves/boots would look good with them. Help?

Thalmor get the pretty pimpin' robes.

If you're on PC, http://skyrim.nexusmods.com/mods/20077.

Mythic Dawn, Thalmor, Vaermina robes. The first and third are a bit harder to find (tip: go to Dawnstar) than the second ones, which can be found on Thalmor Justiciars.
For black robes, you could use black boots (just named "Boots").

At least on females, Thalmor gloves look pretty good with black robes.
There are quite a few models of boots in the game, just try them on as you find them and choose a pair you like!

I don't think there are unenchanted Thalmor robes, but the Vaermina robes look nice (at least on females). Keep in mind that you can enchant ordinary clothes as well, not just robes.

Black robes with thalmor gloves/boots looks decent, and all can be enchanted(and don't count as armor)