5 man dungeon leveling: Are professions viable?

[Mercbeast]

I'm planning on running multiple characters with Tailoring and Alchemy to take advantage of the cooldowns on Mooncloth and Transmute Arcanite, respectively. I will either farm the mats and convert them to the rarer mats to sell or craft with, or simply sell the cooldown to others. I am also planning on having a team of warlocks to sit around the world as summoning minions, so they seem like a perfect fit for this. Just stop leveling them at 35, and park them near key dungeons, in groups of 3, like Scarlet Monastery, Blackrock Mountain, Stratholme, Maraudon, Dire Maul, wherever. I can also leave a bunch of level 1s there too, so I can hearth the locks one at a time to go to mailboxes, craft, then get summoned back.

Then on my regular teams, I can focus on the things that have BoP items like Tailoring.

This is probably the correct plan of action for a MBer. This will be very lucrative, and not really a hassle at all due to the fact cloth is going to drop constantly as you dungeon grind.

[Mercbeast]

Yeah I didn't think of boosting it will still take a while but you can make some ok gold as well... what are you thinking for a boosting toon? Maybe a frost mage to AOE farm lower level stuff?

Warrior or frost mage are typically the two best boosting classes pre-wrath in my experience.