Streamlight Sidewinder Compact II headlamp - it uses a single AA or CR123 battery and has white, red, blue and IR lights with variable brightness.
A couple more pairs of merino wool long undies.
A good pair of hunting boots.
MSR Groundhog tent stakes
Bridgford sandwiches, FRS chews and powder, Ramien and Tuna packs.
So far I've picked up:
Garmin Foretrex 401 GPS
Exped Synmat 9 sleeping pad
One pair of Smartwool Merino wool undies
Wild Country (Terra Nova) Duolite tent
Gerber Camp Axe w/ saw
Benchmade strap cutter / gut hook