Could you get by using something like http://www.dyndns.com/services/ ?

I've used them for quite some time (for free!) to get a name to map back 
to my dynamic comcast address.

They have fairly cheap pay services for more advanced needs.  Probably a 
lot cheaper than business package dsl.

Dan


-- 
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Daniel Armbrust
Biomedical Informatics
Mayo Clinic Rochester
daniel.armbrust(at)mayo.edu
http://informatics.mayo.edu/