Check out the Northern Transcontinental Link:
http://www.pactour.com/
And if you are going to do it, have a browse through this site:
http://www.ultracycling.com/
As for recommendations ... it's up to you. What is your goal? Do you want to do a fast crossing like the PacTour does? Or do you want to do a casual meander taking in sights and allowing for days where you might go here instead of there, or whatever? Are you doing the crossing as an endurance thing? Or do you want to see more the country?