Here's my current setup on my 2010 PsychloX Disc only (non-RSL just like you ordered). Since I don't have a mountain bike built up currently, this serves as my mini-29er with 35c cross tires.
link to photo
I have a WoundUp fork, XTR 3x9 drivetrain, XT hydraulic disc brakes.
** NOTE ** One thing that I didn't think about when ordering and am disappointed in is that the cable stops on the bike are for cable only brakes. Until I get some Jagwire adapters that mount in these stops, I have to continue to use zip ties to hold the hydraulic brake hose in its place.
IF IT ISN'T TOO LATE - Call Moots and specify that you want the cable braze ons they use on their mountain bikes. You can easily run full rear brake housing with the hydraulic cable stops, but not the other way around.
Plan for the future - hydraulic drop bar disc brake will be coming in the next few years directly from the big manufacturers.
As for fork options, your current options for a non-tapered steer tube are:
2010 PsychloX Disc only - 324Labs adapter to use hydraulic disc brakes.