I shipped my Moby coast to coast for 68.00 with UPS a few weeks ago.
The magic number is 70lbs.
You have to take a lot of stuff off. Wheels (obviously), pedals, exhaust, fenders. The handle bars can stay, but you have to take them all the way off and spin them sideways to fit in the box.
Get an excellent bike box. Bubble wrap the bike really well and pad the bottom of the forks. Have extra padding (lightweight if possible) in the box so it doesn't move around much.
Make a separate box, or two, for all the other parts. Should cost you 100-110 TOTAL to ship everything.
But remember! As long as you're under 70lbs in the main box, you'll get the cheap bike shipping rate from UPS.