skaero,
Thanks very much for the tip, I did not know that Dreamhost offered this application. My first 5 attempts did not work well at all, but then Dreamhost support emailed me and enacted an old script that allowed a direct ftp transfer of the backup from CPanel...worked great (email, website data, and mysql databases/users). I say that it worked great, but I have yet to make the DNS switch.
I will post a follow-up to this thread when I get RoundCube setup and working correctly on Dreamhost, hopefully have the connection made to the account that was moved over and they should have all of their sub-folders I hope too!
Also, Softlayer (dedicated) I used to be the admin and then farmed it off to a guy in IL! It's a good company, great support and very efficient!
Aaron