Long time troller, first time contributer. In any case, this is just a little guide on how I personally make gold.
What you need: 375 fishing, level 70, flying mount.
Step 1: Go to BRD and farm Pyromancer Loregrain for fiery enchant. Not my idea; been using the tip from http://www.mmowned.com/forums/wow-gu...ing-fiery.html
Step 2: Once you're locked out, hearth to shatt and head up to ele plateau with the water elementals.
Step 3: Fish the pure water spawns, which give 6-8 motes of water per, and kill water elementals for about an hour. Should get 5-10 Primals depending on population/pure water availability.
Step 4: Head back to town and put up your water elementals/fiery enchant. Only put 1 fiery enchant up per trip, regardless of how many you get.
Step 5: Repeat steps 1-4
I know its pretty simple, but i've found it makes for a really effective amount of cash gain for something that is simple and easy to do. Within 2 days of starting this I had 1000g and bought my darkmoon card: wrath ^^. You generally make about 150-250g per cycle, depending on how many primal waters you get and the price on your server.
Also: If you have 375 mining, you can alternatively make a swing around Nagrand while you're there and pick up a stack of addy on your way back. I have 375 mining but don't do it because I only have the fat kid flying mount =/.