Thanks Guys thats good information,
I was liking the look of the the supremes but was concenrend they might be too similar in construction to the marathons.
Yes, I'll be traveling pretty light, just the essentials (waterproofs, tools, tubes, T shirt, shorts... most of the weight will probably be emergancy rations....) , and no camping stuff. we shouldnt be doing much in the way of trails so they should be fine, but I think I will look at the 32's rather than 28's.