28-135 IS vs 24-105L help

arty H wrote:

Try out the different cameras before you buy. I went to the store with the intention of getting the 7D, but found that I preferred the size, weight and ergonomics of the 60D.

In terms of the lenses you asked about, the 24-105L is a fine lens on my 60D. If I get everything right, the photos rival the sharpness of good primes, with excellent color and contrast. The 28-135 gives you the view of a normal lens at the wide end. While the 24-105 is not that wide, the wide end is more useful.
The L lens is worth the price premium.