To get started you'll want to get some mats. I like to first check Pyrite Ore and then Elementium Ore. I do this because lately Pyrite Ore has been very cheap and sometimes even cheaper than Elementium Ore.
Next you want to prospect all the ore, cut the epic gems and sell them on the auction house like normal.
Most Popular Cuts for Most Servers
[Brilliant Inferno Ruby]
[Reckless Ember Topaz]
[Solid Ocean Sapphire]
[Bold Inferno Ruby]
[Delicate Inferno Ruby]
[Purified Demonseye]
[Rigid Ocean Sapphire]
[Quick Amberjewel]
[Fractured Amberjewel]
[Veiled Demonseye]
[Mystic Amberjewel]
[Puissant Dream Emerald]
[Lightning Dream Emerald]
With the green quality gems, make the available neck and rings with them.(save the Carnelian for transmute) Using Carnelian for transmute can net you more gold then crafting spikes, but if you cant find a Alch to assist you it wont hurt to craft the Carnelian spikes anyway. Vender or hold on to the Zephrite for daily quest, its not worth your time unless you plan to transmute meta gems.
Next, disenchant all of the items you just crafted, you will get more dust then anything but it will be well worth it, with all the celestial and shards you will get.
That about covers the JC part of the section, anything you have after doing the above steps should be sold at a 12 hour auction as not to waste deposit money. As for fishing, this will be short and sweet.
Download Mr.FishIt http://www.ownedcore.com/forums/worl...t-fishbot.html
Go to the barrens and fish near the oasis, you should find lots of Deviate fish here, also you can fish for them inside Wailing caverns if you are scared of pvp. Deviate Fish - Item - World of Warcraft
Simply fish, and sell them on the auction house, over night you should earn yourself a lot of just fishing and waiting for the auctions to sell.
From my personal experience I make around 80k a week doing these above steps.