Sounds like the Troll would be perfect - rohloff ready, massive clearances, suspension compatible, V brake tabs (just in case) and a burly tubeset. So far, the only negative points I can see are the lack of water bottle eyelets under the downtube (for a third bottle), which can be handy for riding long distances. Bottle mounts on the fork, a la Fargo, would have been cool too. But apart form that, it looks like a great bike.
In reference to someone's comment earlier on this thread, I've ridden two bikes during my bike trip south of Alaska - a Santos Travelmaster and a Thorn Sterling (no disc mounts on the Santos though). I'd recommend both highly, though the bikes are pretty different from each other - mainly in terms of how much kit they're happy carrying. I wrote a bit about them, and their differences, here:
http://whileoutriding.com/2009/12/23/bike-battle-not-really/
I don't get any stuff for free. Over the months, I have received bits of kit to review for some magazines, but almost all of it has been returned, eventually (like the Santos, sadly). I do get good deals to buy ex demo kit.
And, I must admit to being a kithead. I love trying out new stuff, like framebags and panniers. But I'm confident that whatever I write about it, whether for the blog I keep or reviews that end up in print, is what I genuinely think - and not just enthusiasm for all things to do with bike touring...
PS if you're really thinking expedition tourer, and heading off anywhere remote (or outside of the US and the UK) I'd stick with 26in wheels, as much as I like riding my 29er at home.