Yesterday I purchased an XTi for my honey from B&H. At home I attached the 50 f/1.4 and she really loves it. Though 50mm is a great lens, but I also want to get something for versatility (my 28-300L is a bit too big for her) as she gets acquanted with the camera and dSLR. Later on we can contemplate 24-70 or 24-105, but at this point I thought of 17-85 and 28-135. Both a bit slow and have IS. One is designed for ASPC the other is more versatile but not wide enough. There are pros and cons for each. I haven't done much research, but are there any gotchas or something that I need to be concerned with about either of those?
Many thanks for your time and sorry for creating one of those silly "what do you think" threads 

