I've been looking at the Canon 30D and have found two kits. One includes the EF-S 17-85mm (f/4-5.6 IS), and the other one includes the EF 28-135mm (f/3.5-5.6 IS). The 17-85 would be wider (27mm) than the 28-135 (45mm), but the 17-85 is EF-S. Maybe that isn't something I should worry about? But then again, the 28-135 is a tad faster at the wide angle. Both have IS, though. So, my question is this: if you had to choose between these two kits, which would you choose and why?