I agree with what Haunted posted. If you enjoy RDM, continue playing it. Elvaans might not be ideal for playing mage classes, but there's always food and good equipment to make up for any lack in natural ability.

Anyway, I do hear that Elvaans make for exceptional Monks, so if you wanna give that job a try, go for it. But I really think it's best not to be overly concerned with how compatible your job and your race are and just go with whatever job you have fun playing.