I spent about 3h last night beating up target dummies. wrote down all my results and left my notepad at home so I dont have them. Ill try to cobble this together from memory.

My first baseline test was just wrath spam while naked. I had 17 spell power and I could only cast about 18 wraths before OOM. The end result was about 500 dps average. Glyphed moonfire on its own did about 115dps, and Insect Swarm did about 104. If I doubled up on the DOT's they dished out right at 200dps. So I figured if I double DOT, wrath spam, I should hit around 700dps. Wrong. I tested this over and over, not useing a cast sequence or anything, just drag and drop the spell from the book to my cast bar. I could not get over 550 dps before oom. I bet I spent a good hour on this before comming to the same conclusion Ughmahedhurtz. DPS meeters are inaccurate peices of junk. I was getting off about 2 less wraths due to the mana used to cast the DOT's and the total damage done was a good deal higher at the end. No way +50dps was all. It took about 30 seconds to go oom. Thats like 1500 more damage over a 30 second period for these two DOT's.

I drank beer

So with everything equipped. My wrath spam clocked in about 950 dps. Took a lot longer to go oom. I was getting in about 56 casts of it before OOM. Moonfire and Insect swarm went up a bit too. I remember about 530dps when combined. Both DOT's and wrath spam checked in at a solid consistant 1100 dps.

I drank more beer.

In the end. I wound up reading a post from Fuzzboy that was 90% shaman info and 10% druid info.
WotLK castsequences for shaman/druid (theorycrafting/long)
He had a big long macro for both classes to rotate and stack dot's and debuffs. Then like 13 posts later there was this.
Yeah, after a lot of back and forth I ended up with this simple, yet effective druid macro:

/castrandom starfire, wrath

That's all. It'll take advantage of your casttime-shortening talents and do loads of damage. On my shamans I had (all three are retired now) FS applied manually and then:

/cast Lava Burst
/cast Chain Lightning
/cast Lightning bolt

and just reapply flameshock when needed. Still my druid with the simple macro above would outdps the shamans by more than 500 DPS. Also tried manual FS and /castrandom lava burst, lava burst, chain lightning, lightning bolt which didn't work well. For boss fights you may want to debuff the boss first with the druid. For mobile fights, you want to include insect swarm and moonfire.
/castrandom Starfire, Wrath
/face desk
I tried it and maintained an easy 1300 dps on the target dummy w/o dot's. I tried to macro and manualy add the dot's and I couldnt get it to reach the DPS as just a 50/50 spam of thoes two direct dammage spells. I put in my rotateing heal macro and it dropped down to about 1230 reliably.

Conclusion: Dont really have one, I still cant kill the first boss in Drak'T Keep on Heroic and the only way is to increase DPS so back to the grindstone, and Recount cant count.

Theorys: Wild variance in DPS all came from crits. A few times I peaked out on a druid in the 1900dps range and it was due to a lucky streak of crits. And the opposite was true. I had a couple runs of 0 crits and ended up in the 600dps range when fully geared. To see big increases in DPS, you need to crit. Target dummy you cant miss and it doesnt resist, so Hitcap>Crit>Spellpower>Haste is my theory.

Ill worry about DPS suckage after I get done completeing Northrend of its available quest content and see where im at. I still do have a lot of crap gear on my druids from level 74-76 quest greens and blues.