Backup across the Internet

Hello all!

Here’s what I want to do:

We have a corporate office in FL with MSSQL / Exchange / Terminal Server / etc… I want to have a server in TN that can serve as a backup if there is a disaster… I also want to back up nightly (differential) to that server across the internet

any suggestions on this senario? and what software should I look at for the nightly backup across the internet?

Thanks for any advise / suggestions

Jamie