Short of 800 DPS or short by 800 DPS? There's a big difference there.
Go to this website, put your character in, play around:
http://www.femaledwarf.com/ You're about 2% short on hit, even with a Draenei in your group (you need 8% total, 7% with a Draenei), and you really should fill out your glyph slots with whatever's best suited to the spec you decide on. You should also consider respeccing--my troll hunter is at about the same place you are, and she would gain a couple hundred DPS just switching from Marks to SV.
That one point in Efficiency isn't doing much for you, so if you really want to keep your spec the way it is now, for whatever reason, at least move that point into Go For The Throat for your poor focus-starved pet--and do your pet a favor and level it to 80 if you haven't already, too.
You also really need to get your Ebon Blade and Hodir rep up--questing for rep will make you a nice amount of gold, and while you take the time to do that, pick up the Wintergrasp helm and shoulder enchants for a little extra AP. Cheap enchants are better than nothing.
Edit: I didn't mention gems since you seemed to have some idea of where you're going on that, but two points: Get a belt buckle for the extra gem slot, and get yourself a meta and keep it activated. Extra agility and extra crit damage are yummy.
Edited, Oct 28th 2009 11:08pm by isyris