Re the Thermarest, if that's what you want, look for closeouts on the old models (2009 saw a bunch of new models) at places like Sierra Trading Post and the various outlets. Check the "Other TLB Sponsors" list in the left-hand column of this page. Also watch for 20% off coupons at places like backcountry.com and REI.
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May your trails be crooked, winding, lonesome, dangerous, leading to the most amazing view--E. Abbey