Hey AcidRazor i had a look at your gear just now. A few thing that might help you out.
First of all i can see you arent a serious raider, but a lot of gear desperately needs improvement. You seem to have a mix-match of DPS gear and tanking gear.
You are geared a lot towards stam, and at this point it might be easier for you to just respec to a tank

But either way i think you may want to start doing a bit of VoA in Wintergrasp. Its extremly easy on 10 and 25 man settings and pugs are always available.
Naxx 10 would get you loads of gear upgrades aswell, although that will take a bit more time and a decent group.
Obsidium Sanctum would get you a few pieces of gear aswell and its not too difficult after a few tries.
Other than that i can see you have done a few heroics, but its just about keeping on with it until you get better gear.
You biggest problem with your dps is that you have to much tanking stuff (+stam +def rating) and not enough +agi +hit.
I dont know if you have heard of Atlas Loot or not, but its extreemly useful for checking out possible drops from bosses. Start with replacing your greens one by one.
Also Leatherworkers make a decent DPS shoulder item, i forget its name, but its purple!!

That can be made cheaply if you have a skinning friend or a few extra bucks lying around.
I see you are leveling enchanting, major money sink there..
But try get it up to at least Wolk side, then you can start disenchanting and enchanting your own stuff, and could possibly make a killing if ur clever.
A few cheap enchants would do wonders for your gear. I have a tip for gathering BC enchanting mats if you are a bit short, it really helped me out.
Also like Endev8003 said. Practice on the dummies, thats what they are there for... Perfect your rotation!! Get the Recount mod. IF you dont already have it. It will help you track ur DPS.
Badkitty Mod will help you out aswell with ur rotations (once again, if you dont have it already)
And also remeber this: Most people go on about DPS this and DPS that. DPS stand for Damage Per Second. And in a boss fight that is not always the most important thing. Damage Done is.
On my warlock there is no way i can beat a mages DPS but on damage done i kill them.
So its not how fast you do the damage, its how much you do as well..
oh and
http://www.wow.com/gallery/adams-wow-gallery/2038788/full/
Enough from me...