So, here it is....

..... the route. I've done a bit of research and stuff on t'internet and found a few places that suggest routes. WikiTravel has a good one that takes about 9 days. This is a bit too quick for me, as it averages about 300 miles a day. Eventually I've settled on the route below that is based on an itinerary from a company called Riding Route 66. It takes about 14 days, and includes side trips to The Grand Canyon and Las Vegas, where I might spend a couple of days, meaning this part of the trip could actually take me 16 days. So here it is in more detail:

Day 1: Pick up bike in Chicago, fairly short ride to Springfield IL.
Day 2: Springfield, IL to St Louis, MI
Day 3: St Louis, MI to Springfield, Missouri
Day 4: Then on to Tulsa, Oklahoma (202 miles), cutting the corner of Kansas for about 20 miles
Day 5: Tulsa, OK to Clinton, OK (217miles)
Day 6: Is this the way to Amarillo? I sure hope so, as that's tonight's stop
Day 7: Amarillo TX to Las Vegas New Mexico, passing through the half way point on this route
Day 8: Las Vegas, NM to Grants, NM/AZ, about 239 miles
Day 9: Grants to Holbrook, AZ
Day 10: Then a side trip up to the Grand Canyon
Day 11: Back on track, and stop for the night in Needles
Day 12: A short ride for the 2nd side trip up to Las Vegas, Nevada
Day 13 (& maybe 14): Stay in Vegas and clean up on the poker tables
Day 15: Back onto Route 66 to Bartsow, CA
Day 16: Arrive at the end of Route 66 at Santa Monica Pier
Day 17 - 21: meander up to San Fransisco and give the bike back :-(

 Of course, this is the first cut. I might find something interesting on the way and spend longer in one place, and then make up time elsewhere. I'm not planning to book any accomodation more that a day or 2 in advance, so there will not be a strict schedule that I have to keep to.

Getting exciting now!! Can I go this year instead?