I have the 1440 top load Pelican cases on my '03 Dakar. They work great and the price can't be beat!
Purchased a NOS Moto-Sport pannier rack off ebay last winter for $69 including shipping. Purchased the Pelican cases online for $104 each including shipping and then I purchased the Moto-Sport Universal Mounting Kit for $77 including shipping, see http://www.moto-sportpanniers.com/brackets.htm#mounting
I even put aluminum drawer pulls on the lids for convienent tie-down spots!
Here's a pic