ok, i play in a private server. Please, no professions passed lich king because thats the only one they have. The only reason i need the money is because i want dual specialization, and they haven't updated their server enough, so it's still 1000 gold instead of 10... also, any other way of making money posted below will be appreciated ^_^

Skinning is super easy. Pretty much every mob you kill can be skinned. And you can vendor off stacks of leather for a good amount of money.
You might try Mining as well.