I am planning to get the EF-S17-55 f/2.8 and the 70-200 f/4L IS lenses.
I have been somewhat satisfied with the 28-135 IS, but not really that crazy about it.
I mostly use the lenses for general photography, vacations and some standard corporate photography occasionally.
Should I keep the 28-135, or get a different lens to cover part of my gap between 55mm and 112mm (70*1.6x)? Or just deal with the gap and crop accordingly?
I am using a 40D, planning to pick up either a second 40D for backup or a 50D.

And as others have said, don't fret at all about a "gap".
