Welcome, Matt!
Originally Posted by mattyg1027
Well, if you're looking for quality glass with IS in that range, consider theEF-S 17-55mm f/2.8 IS USM, or if you want a true 'walkaround' lens and really don't mind a slow aperture, then theEF-S 15-85mm f/3.5-5.6 IS USM. Both have similar, very high IQ - the 17-55mm in particular is 'L-quality' (and L-priced, but without the robust build and weather sealing). The main downside to those is that they won't work on a FF body, so depending on how soon you plan to upgrade, that may be a show-stopper.
Personally, the EF-S 17-55mm is my most-used lens on my 7D.
Originally Posted by mattyg1027
I'd agree, in your case. I'd assume you're basing this on your current shooting patterns. I would caution you that while I think the 24-105mm is stellar on FF, the difference between 24mm and 17/18mm on the wide end is very significant on a crop body (24mm on a 1.6x body is pretty close to a 'normal' focal length. If you enjoy wide angles and sweeping vistas, you'll likely find yourself wanting wider than that (for me, even the 17mm end wasn't quite wide enough, so I also have the EF-S 10-22mm f/3.5-4.5 USM).