as beaverbiker alluded to, bring your toolbox and plenty of spares. there are no bike shops anywhere close, and the terrain is tough on bikes. I had a mechanical during practice a couple years ago and was barely able to macguever a fix. it would be a bummer to go all the way out there and not be able to race due to a mechanical. I'd bring spare rotors, chainguide parts, chain, spare tire, seatpost, shock, whatever you've got basically. people were running around trying to find just about all of the above parts when I raced. hopefully this year there will be a bit more neutral tech support in the pits but last time I raced there you were pretty much on your own.
I'll be there, I'm looking forward to it!