More on the touring build up for my Trek 3700.

Cateye cadence sensor. 

Serfa comfort seat and Bontrager spring loaded seat post

These are really stout racks. 
The folks at Pedal Power in San Marcos (Tamara, James and Drew) really did a great job of getting everything together and in the bike. 
I also had the rear brakes, 11-32 cassette and chain  changed out also. 
Can't wait to try out this setup. 
Oh - and I didn't get the Trek 7300 but I will when I go back. 
Hell - strap a mini-gun on the front rack and a grenade launcher on the back rack and you could go to war with this baby.