Syncing Exchange and Google Cal

Question

Guys,

Have you come across any solution that would allow me to sync an exchange accounts calendar, with a google calendar?

I'm aware of the desktop sync client, but this requires Outlook to be running on some machine, somewhere. Which is something I'd like to try and avoid if possible. I can run the syncing app on some VPS or something like that. Outlook however is a little heavier.

Thanks