I'm actually finalizing my list right now. I'm flying down to Christchurch, New Zealand tomorrow afternoon for a couple weeks on a rented SV650.
Last year I spent a month riding up and down the west coast on a Ninja 250, ended up packing too much (
My setup) so I'm hoping to apply some of the lessons learned from that trip. I'm not taking camping gear this time, though, and there are some stuff I wouldn't take if there wasn't a flight required just to get to the bike (ie, some of the luggage), but still...
If it helps, I've got a small travel blog setup for family / friends so I don't have to deal with email. My latest posting has a list of what I've got packed so far. One big difference between my list and what you should take is tools. Make a list of the tools you think you'll need and take only those for the issues you think you'd be able to fix on the side of the road. If it's a issue that'll require taking it to a shop or calling for help then you can borrow their tools. For instance, when I went on my west coast trip I took a small bag with just the main sockets my bike used and a couple screwdriver bits. I'm glad I did...I had to swap out petcocks, fix a busted sidestand and tighten the chain while on the road. Just don't take your entire toolbox...
http://kiwibound.livejournal.com/
BTW: Highway 101... It can get crowded with tourists but it's a **** nice road. Beautiful scenery, some fun twisties, nice beaches, etc. Northern Cali and Southern Oregon are the best stretches in my opinion, though Washington is also good. 299 and 96 are also very, very nice. If they end up taking you in the direction you want to, take them ;D
EDIT: Spend some time at local camping / backpacking stores. REI is a good one, though check out locally owned places if you can. I've gotten some excellent space saving ideas just browsing thru their inventory, especially the backpackers section (they have to travel very light). Also, look into a Jetboil. It's a combination thermos / camping stove. Quick to setup in the morning for a quick meal of hot oatmeal and hot chocolate and more than once it's been a lifesaver after arriving to a campsite cold, wet and hungry yet miles from anything resembling a restaurant.