I am using DirtBagz on my wee. I was using ortliebs, but they are very small, they will scratch up all your plastic and rails, and you must have something on the left side of a wee to keep the bag from going into the wheel.
Hard bags = very bad off road, especially if you need to put your leg down for anything, it will get caught up in the case.
Hard Bags = great on road if you never ever lay the bike down. Good security
Soft bags = great all around. Zip Lock large bags will keep everything dry. No security. Get a plastic top case for securing valuables (even though a topbox can be ripped off with a good heave).
Ortliebs with a left side rail $200+
DirtBagz with mounts $255
And you can use the DirtBagz on your other bikes.
Magis Ile Quam Scientia
[URL="http://snoma.biz"]Sierra Nevada Off-Road Motorcycle Adventures[/URL]