"I'm not sure there are enough applications out there to run on Linux (SUSE 10)"
Novell ported over all of its enterprise apps (Groupwise email, etc) to Linux, starting about 3 years ago. Novell runs its corporate office entirely on Linux servers and desktops.
(Denny Crane: "I Don't Want To Socialize With A Pinko Liberal Democrat Commie. Say What You Like About Republicans. We Stick To Our Convictions. Even When We Know We're Dead Wrong.")
I know that. I used to work at Novell.