HI M,
Try
www.movedirect.netYou will fill out a brief inventory list and they will gather bids for you. It will take a couple of days to a couple of weeks. You will want to save the inventory list you submit since it won't show up again (this is what happened to me). These are just ballpark figures and I am unaware of the rep and services of theses companies but you'll get an idea of cost.
I got a bid from themovingworld.com for $5000 to move our entire household including minivan and car. (This was just for fun.) And I thought it was a mistake, but I recieved more bids from them that were really cheap. I also received bids that were really expensive.
Beccaboo mentioned sharing a container with other travelers and I've seen this alot on online descriptions. So if you have large stuff, but not enough to fill the container (7'x7'x20'), this will most likely be what you are offered.
I've seen many useful sites on packing procedures and how to figure out your total volume but I will have to get back to you on that.
Let me know if you find anything interesting.
Good luck!
LOL~Gina~