Honestly, in my opinion, any piece of gear you plan on upgrading within 2 weeks RL time isn't worth enchanting. As you are level 40, your gear should be changing constantly. Even now (which you can see on my armory gear) I've only taken the time to enchant 2 pieces of gear, though I'm looking into enchanting my chest piece. I only enchant stuff that I know I'm going to keep a while, otherwise I don't bother.
Edited, Mar 20th 2007 12:31pm by Dilbrt