So sorry for the delay I just got back from riding a couple days in Moab, UT
I already answered your question via email, but for everyone else.....Generally, the current 2012 Medium Colorado pant will fit great for people under about 5'11'', and will probably be too short from anyone over about 6'1". In the upcoming version more length has been added to the "standard" length pants.
I am not surprised you are having problems with the Traverse stuff, it is quality gear, but any water proof breathable apparel will never be as durable compared to non-waterproof clothing (see post #52 in this thread for some more info).
Utah is a great place and if you ever get a chance to ride there it is well worth it. There are several companies that rent bikes/tours.