I can pick up a used set of the 2005 SL's (but it's Campy and I'd need to change to Shimano) OR pick up 1 of 2 used sets of 2007 ES's (Shimano). All prices are good and the miles on all are VERY low.

Besides weight... what are the differences between the Ksyrium ES and SL? I hear that the SL are pretty tough... which sounds like it would be a good option for me (I live in DC). I hover around 155lbs (usually just below).

I've been thinking about new wheels for a while and now these two offers are out on the table on the district listserv!

Thoughts?