I use these guyshttp://www.icdsoft.com/
I have multiple domains on multiple
servers with them.
They offer everything you need, price is good,
control panels/options are great and their support is top notch too. I have had a support
person answer a query within 5 minutes on more than one occassion.
I think the
servers my sites are on are in different places too, one in the US and one in Hong Kong.