From the RTW forum:
http://www.westernair.co.uk/roundtheworld1.html
"quite a good summary of the various RTW
pachages currently available"

http://www.driveaway.com/driver/driverinfo.htm
Driving cross-country. In someone else's car. Nice.

http://www.trekshare.com is a site where you can set up a travel journal/travel photo album. $7.99/year.

http://pleth.tripod.com/
Travel on the really cheap.

http://www.cyber-nomad.com

I was thinking close to 10K, but it's looking like I'll need closer to 15K considering the continuing expenses I'll have when I'm on the road.

Good Information here:
http://www.thetravelyear.com/

Terry's Trek
This guy is traveling rtw right now. He's a bit of a complainer but he has some interesting stories and photos.

It will be important to take the appropriate health precautions before traveling.

Google has an extensive round the world directory.

Places to look for flights:
http://www.roundtheworldflights.com/
http://www.bridgetheworld.com/
http://www.airtreks.com/index.html
http://www.trailfinders.co.uk