I need to get myself a bag to carry my laptop (Dell Inspiron 630m or Apple PowerBook 15" depending on mood) along with a magazine or two, change of clothes, lightweight towel.

Been looking at the large timbuk2 messenger (http://www.timbuk2.com/tb2/retail/ca...9&categoryId=6) or a large Crumpler.

Currently leaning more towards the Timbuk2 as I can have it made up custom and because their website is usable. Anyone got any experience of both and can persuade me I'm doing the right thing?