You could probably make money spamming your services in the trade channel. Very few people actually take enchanting to make money doing the enchants. They, like myself, make the money from selling the dust, shards, essences on the AH. If you are looking to take up enchanting to enchant your gear, your best bet is to contact guildy enchanters. Either supply the mats (buy them off the AH) or strike a deal with them to use their mats if they have them available.