Have you purchased a bike yet? There is a good book from Adventure Cycling called "The Essential Touring Cyclist," by Richard A. Lovett that was very helpful to me. There are several factors to consider. Frame material, fit, weight, chain stay length, portability and saddle. I have toured on both aluminium and steel. Each has it's advantages. I like good steel for comfort and fixability & aluiminium for stiffness and weight. The one thing in steel to watchout for is frame flex. Getting out of the saddle to climb a hill or a fast techincal descent is not the time to discovery frame flex especially with a fully loaded bike. Fit is vital for a comfortable and more upright ride especially at my age. If you haven't purchased a new bike in 18 years, like me, I would take a trip to your local bicycle shop. Have them measure inseem for seat tube length, torso and arm length combo for the correct top tub and stem combo, femur to knee for correct crank length and your shoulder width for correct handlebar width. If you are like me 157 pounds and do not carry more than 60 pounds tops (including bags), or sometimes use a trailer, then you will have a lot of choices. If you weigh 230 and have 80 to 100 pounds of gear and bags your choices are fewer. 1 am the first scenario, fit and comfort, at age 57, very important so I purchased a Comotion Norwest Tourer. Chain stay length I would not go less than 430mm or 17 inches especially if you have a large foot. 460mm or 18 inches is better. Check your bags for heal clearance. Picking bags is a whole other discussion. Portability, S&S couplers, quick disconects for the cables, and a good hard case is the only way if you travel alot and value your bike. There are several shops in the states that do this retro fit. Bilenky in Phila, Pa. does a good job at a reasonable price. Saddle, as you already know if you purchase a Brooks saddle, buy it before your tour and break it in 300 to 400 miles or you may be very uncomfortable for the first few weeks. I am sure this post will generate some discussion. Let us know what bike you end up with. Have a happy and safe riding new year. Bob