Mudhog, there are many good suggestions here, and I see you arrived at an excellent decision, but I wanted to give you my late 2cents anyways. =)
For me, when I first started, I was continuously referred to the 50mm 1.8 or 1.4. I loved the shots I saw with this lens, and purchased it. Although I eventually got good at it (by my own pathetic standards), it was obvious that 50mm on my crop body was the WRONG choice. Interestingly enough, there are plenty of examples of full frame experienced users who love their 85L, but think it is an awkward and specialized focal length--and those SAME users refer newbies the 50mm on their crop bodies.?
My next lens, because I continuously found myself wanting something wider (or longer) was the 10-22mm. I purchased it, and it was a fantastic lens, but honestly it was TOO wide for me, and although I got a couple great shots from it, we never got along.
Several lenses later I ended up with a 24-70 f2.8L, and I couldn't be happier. I normally stopped my 50mm 1.4 down to 2.0-2.8 anyways because I didn't like the softness wide open (I had a good copy btw) and the excessively thin DoF, and 24mm was PLENTY wide enough for indoor and full body shots. Yes, people are correct when they say 24mm is not "wide" on a crop body....but it is plenty wide for ME.
Although I could have been happy with the 24-105L, the 24-70 paired exceptionally well with my ultra-sharp copy of the 70-200 f4L non-IS. I absolutely adore this combo, and I can't see me trading these lenses unless my birding habits get me into deep debt. =P
Anyways, the moral of this story is that I wish I went with the 24-70L from the beginning--yes it is DANG expensive, but it is a truly excellent lens and honestly I would have saved money by just buying it right off the bat. Canon has a rebate going on right now that will last through January, then it will probably go back up to 1400 from 1200.