A good shipping service for large computers?

I have purchased 3 large SGi crimson computers and need them shipped from california to florida. I am uncertain of a good service to use for the task, i need the machines to be packaged up / put on a pallet at the pickup location, the owner is unable to do so. Usualy I would use YRC freight, however they do not offer the service to package the machines on site. Hopefully someone here can make a suggestion. Ive never dealt with shipping something this large before. I did have a Microvax 3800 shipped with YRC freight, however that was purchased through a business and was packaged before shipping. The crimsons will be a bit larger. I have the machines paid for, but figuring out the shipping has had me a bit stumped for the past few days. --Devin