I just re-joined AC after being away for too many years, so I haven't seen the Dec/Jan 2010 AC issue yet but until then this web site has all the info on racks I think I'll need. Check it out. BTW - what is LHT?
If you don't receive the Dec/Jan 2010 issue due to when you rejoined, keep an eye on the Adventure Cyclist page http://www.adventurecycling.org/mag/index.cfm. Eventually there will be highlights from the issue posted there. If that article doesn't show up there, be sure to look for it in the publications archive http://www.adventurecycling.org/library/index.cfm.
PS LHT is a Long Haul Trucker, the touring bike made by Surly.