As to how to make money in the game?
As far as "special gear" pre-85: You said it yourself -- Fuhgeddaboudit. You get your gear through quest rewards.
While you level up your first character, be smart and take two gathering professions. Pick two of: Mining, Skinning, Herbalism. I personally recommend Mining and Herbalism, though you could switch out Herbalism for Skinning.
Either/or.
Sell all of your product on the AH.
Make sure you undercut by at least 25% -- you will want your stuff to sell. I've seen Copper Bars (the easiest stuff to get, you'll have LOADS of this stuff) go for 5+ gold a stack and this was a long time ago. Even if you sell for 3-4 gold a stack, you're still making a hefty profit. More than you'll ever need on your first character leveling up.
Very first thing you should look into doing, is buying yourself 4 Netherweave Bags. They are the cheapest Bag Slot to Gold Ratio, on both of the servers I play on, they normally run 8 to 12 gold per bag.
That might sound like a lot, but remember -- if you can get 4+ gold out of 20 copper ore, it will not take long for you to get those bags.
Once you get those bags, loot everything, everything, absolutely everything you kill and sell all of your loot.
People throw away ridiculous amounts of money because they are too lazy to loot their kills. Once you get into the Level 40+ area, you start seeing 5, 10+ gold from leveling sessions in vendor trash once you get back to town. As long as you empty those bags every time you get back to town (use a level 1 alt in a town to mail your ore/herbs/skins to), you won't have to worry about filling up too fast.
As you get to Level 60+, that vendor trash starts making 50+ gold per trip.
Once you're in Northrend in the mid-70s, you can go out, do a bunch of questing, and come back and be 150+ gold richer than you were.
In Cataclysm, it goes up even sharper! It is pretty easy to go out, do some quests, come back and vendor a bunch of crap and find out that you just made 500+ gold in 45-60 minutes of questing.
All of these numbers are not counting what you made by selling your ore/herbs/skins on the AH.
A small caveat: Some Outland Materials do not sell well on the AH, particularly Adamantite Ore, and Saronite from Northrend. Saronite Ore is best smelted into bars, then vendored (25 gold for vendoring one stack of Saronite Bars).
I personally wouldn't bother trying to sell green equipment on the AH; given that most people get plenty of enchanting materials from quest rewards, and given that most people get their equipment from quest rewards after The Shattering, I don't really see a large demand for low-level green junk on the AH; I normally just vendor these unless I need to DE them myself for the mats.
Once you get one character to 85, you'll find that gold is a non-issue -- doing daily quests alone can net you a few hundred and if you have at least one character with gathering professions, you can throw a rock and hit several gold. Leveling more characters with other crafts (production crafts, especially Enchanting and Jewelcrafting) will only increase your gold-making potential.
The best thing to do first, though, is get that first Level 85 character with gathering professions.
EDIT: As an Experiment in Post-Shattering leveling, I leveled a tauren paladin from 1 to 80 with absolutely no outside help, except free netherweave bags and heirloom armor. Not one single copper was given to her.
I chose no professions at all and vendored everything I got, with the exception of cloth, which I sold on the AH when it was viable to do so (it had to go for at least 50s per stack).
When she reached Level 60, she had 500 gold before buying her Flying or FM License.
When she reached Level 70, she had both Flying, and FM License, and 400 gold.
When she reached Level 80, she had ~3000 gold, nearly enough to buy 280% flying.
I quit the experiment after that.
All I did was loot everything I killed, and sell cloth on the AH.
I will admit, however, at Level 60 I took a bit of a break from leveling to do Azeroth Loremaster, all but Stranglethorn, Swamp of Sorrows, and Blasted Lands. I estimate that said Loremaster quests netted me ~200g in vendor trash/quest rewards.
Edited, Jun 15th 2011 10:38pm by Lyrailis