From previous travels I've a pretty good idea what equipment I want to take with me. Here's a list of what I intend to take with me, minus all the obvious stuff. I'll update changes as I go along.
Documents and Books
Good foldable road maps preferably Mitchelin. 
Bike docs and insurance
Travel guides.
Visas.
Carnet from the RAC.
Notebooks and pencils
Couple of good novels.
Books/manuals on pda/UMPC.
Bike manual on pda.Motorcycle Travel InsurancePassportDriving LicenceMany PhotosCopys of all of the above
ElectricalSmall SW radio. 
PDA with Sat nav, games, spare battery, huge memory card, quick processor, half decent camera 3 meg or more, sat nav receiver.
Memory Stick
Camera, digital small but good with audio, good size screen, optical zoom, and video, 7mg pix or above
Digital SLR, wide angle, and zoom.
Mini tripod.
12v aa/aaa Battery charger
tiny laptop with huge battery and car charger, running various programs. 
Small condenser mic
Powered speakers for pda.
ClothingFoot gaiters, waterproof glove covers.
Good bike boots, comfy to walk in and waterproof.
Good three way riding gear removable linings 
Draggin jeans for hot climates.
Summer gloves, and winter gloves waterproof.
Waterproofs.
Decent crash hat.2 Changes of clothesLeather Jeans just incase
Kit60 litre waterproof roll bag 
20 litre waterproof roll bag
Camouflage cover 12ft/10 at least and quality bungee and pegs.
Quality tent but with space for belongings and one you can sit up in.
Camping Chair with back.
Good knife opinal/leatherman
Medical kit
Fold up Fishing rod etc. Coleman multi fuel stove 
Metal plate, cup, cutlery.
Travel guitar books+strings.
Sunglasses.
Mosi net, treated.
Air mattress.
Compass.