I recently leveled up cooking and fishing (cooking 400, fishing just 200) on my 5 shamans.

The cooking daily alone is worth a bunch. You basically get about 10g and between 10-36 northern spices.

Because everyone is raiding uldar now, and it's TOUGH, they'll need good food buffs. Food sells really well on the AH, or you can just sell the spice (which is required to make the best food, and the spices you can ONLY get from the daily) You get about 3-5g per northern spice on the AH (on my server at least).

So with 5 guys, each getting an average of 15 spices per day, that's about 300g if you sell the spices and another 50g for completing the quests. So that's about 350g for one daily. It takes maybe 10-15 minutes to do.