I just shipped my Macbook Pro to CA from the East coast. It will get there on Friday, so I can give you some results then. In terms of shipping methods, you have to pay USPS for tracking and delivery confirmation, and I don't know what there insurance rates are. I used to work @ a UPS Store so I can give you some tips on packing. man this feels lame
Wrap the laptop in bubble wrap as you would a gift, folding in the corners and then taping around. Surround the bubbled laptop in packing peanuts on all sides so that it can't budge. If you have supplies like a charger or discs, make sure there are some peanuts between the bubbled laptop and those as well. Pack the box with as many peanuts as physically possible so to get no movement from inside it and the most protection you possible can.
Hope that helps.