Here is my set up on my last overnight ride of the season.
I'm sporting a set of Ortlieb Drybag saddlebags, Wolfman Explorer Tankbag, and a drybag on the rear rack.
For the life of me I can't remember what was in the tank bag. I think I had a camera, toiletries, maybe my tire irons. Anyway you can fit a bunch of stuff in there and it'll expand if you really need it to.
The Ortrliebs hang over the seat with large velcro straps. I keep them off the exhaust with some Ebay Racks. As a side note those racks came in handy for places to grab when I sunk the bike in half frozen mud. I usually put my cloths, extra boots, tools, and some rain gear in there.
My tent, sleeping bag, and tarp are in the blue drybag on the Rack. Believe it or not I didn't use the tent that whole trip. The night I stayed in Valdez the campground let me use their loner tent so I wouldn't have to pack up a wet one in the morning, and the second night I stayed in the loft of a hanger at the GlennAllen Airport. With a TON of SuperCub parts!!!
Anyway, I like the drybag saddle bags. While I don't think I'm bringing too much stuff I'd like to distribute it a little better.
I really need to install my tool tube at the bottom of the down tube. That way my irons and everything else will have a nice low center of gravity place to live. Spare tubes will eventually go on a fender or fairing bag, and I'd like to get a Ortlieb drybag duffel for my tent, sleeping bag, etc...
You might already have them but some Radiator protection is worth a lot. A guy up here straps cheap backpacks on the crash bars that go around the radiator plastics. I kinda like the setup and might try to copy it for next season. I'll see if I can find a pick.
OH yeah. I've also got a tripod, quart of oil that eventually fell off, and sleeping mat in held on by at bungee net.
Have a fun trip. I'll be in the office