here is how to do it.
http://davesgarden.com/guides/articles/view/1202/
copy and post
mk

Here is a link that might be useful: how to pack plants

I have been mailing plants all across the US for 9 years now. I always denude the plants of soil (this greatly reduces the weight and also keeps ALL of the AG departments happy!) and wrap the roots in damp (not wet) papertowels.These end up in either plastic baggies, or saranwrap, then wrapped in newspaper. I use US Priority mail. I have never had any plant arrive in bad shape.
Steven

kritz - thanks for the link, i'm off to check it out.

norcalconifers - i can ship tomatoes bareroot?

I ship everything bareroot, just wrap the roots in damp papertowels. Has always worked well for me.