>>Unfortunately that IP address would already have a DNS entry at the ISP, so I wouldn't be able to use it for my purposes (like running an email server or FTP server). Looks like I will have to pay the piper.

>You can run FTP/eMail and Web servers from a single IP address. They each use different default TCP/IP ports. You can even run multiple web sites by making use of Host Header processing.

Can you point me to some info on doing this? I am also assuming that my DNS server will need to have its own IP address. So the minimum I can get away with is two IP addresses right?