Some really good advice for you in the posts thus far. I will add my two cents worth. I was a newby to the scene and purchased a trek 1.2 a couple years ago to take on some 4 day rides doing part of two BRANs and a NUMB (Nebraska rides). Then last September, I did a 500 mile solo credit card tour (motels) from SC Nebraska to Breck CO (you can read my journal of the trip at http://www.crazyguyonabike.com/doc/?o=1&doc_id=10146&v=7p
) Basically what all the posters are saying is true. The trek 1.2 or equivalent is not a great pal on these trips. You can do it and will have some great memories, but there are better options. Recently, I bought a Surly Long Haul Trucker to do a coast to coast ride, hopefully in the next couple years. I have about 400 miles on it and couldn't be happier. First of all, the ride is some much better. Wider tires, steel frame and longer wheelbase make it much more comfortable for me to ride. I don't know your dimensions, but I'm 5-10 and 205. My extra weight makes the LHT a good choice by itself. Like previous posters said, if you are taking a lot of stuff, the LHT is a much better choice. As my journal stated, the trek 1.2 has a shorter wheelbase and I had some issues with heel strike on my rear saddle bags and had to place them farther back on the rack, which created other issues. The LHT was about $400 more than the Trek 1.2, but IMO this is money very well spent when you are on the road. The most surprising thing to me about my Surly is that it weighs more than the Trek, but my average speeds are higher. Probably just me. Oh, and one more thing. The LHT tends to be a little larger compared to the Trek. I was fitted with a 56" trek, but when I test rode the LHT, I was borderline between the 54" and 56". Good Luck and hope this helps!