Server Co - Lo and 2 factor security

Hi,

A client of mine wants his server located outside his office for security
reasons. I suggested one of the many companies offering rack space in the
dockland etc, however he would be happier with one closer to home.

Does anyone know a facility for server co-lo in a secure location in
somewhere like cardiff or bristol.

Secondly, he is interested in two factor authentication using something like
SecureID. He will be using Windows 2003. Is it easy enough to setup the
server side? Is it reliable?

Can anyone offer any ideas maybe I have overlooked?

Thanks for your help.