We are thinking about updating our reseller plan offerings. I would really appreciate any input on what features, resources, services and scripts you would like to see in a good reseller plan.
I’m thinking about adding a free WHMCS billing as an option, RvSite Pro available for all accounts …
Anything else?

Hi,

a Domain Reseller account, free website templates, ruby on rails...

End user technical support for your client's customers would be an excellent addition. Of course we're talking premium reseller accounts. Daily backups are also a good thing to include.

A free domain name , that will win you lots of customers, I like the way startlogic.com and webhostingbuzz.com do this for their clients.