I've recently started a video production business. I decided to use Linux for my "office" type applications for security, stability, and budget reasons. I've really been impressed with the quality of these applications. I use Open Office, KOrganizer, Mozilla, and Gnucash for most of my work. After having such a pleasant experience with these programs I began to investigate what Linux apps were available for video production. I found a linux counterpart of just about every program I use:

Photo manipulation / The Gimp
Sound editor / Audacity
Video editing / Cinelerra
Motion graphics / none??? *(see conclusion)
Music creation / Soundtracker
Windows Compatibility/ Vmware Workstation

This isn't meant to be a review but more of a my personal experience with these programs. I just want to say that if you like Linux/ Alternative platforms you should support these projects any way you can.

Machine Specs:
Dual 1.2 Ghz Athlon
Ati Fire GL 8800 128mb
512 mb ram
SoundBlaster 5.1
LindowsOS 4.5

All of these programs were available from the Lindows C&R and free to download for other distros except Vmware which is the 30 day trial from their site.

Conclusion:

There are a few up & coming programs that I didn't discuss here that are definitely worth checking out. One of them is Jashaka. Its an all in one program that does video editing, motion graphics, titling, etc... I've been playing with the current alpha realize and it's going to be very cool. Check it out at: http://www.jahshaka.com. Another program that I'm waiting for is the linux version of Main Actor. Its an editing program from Main Concept and its going to be a commercial release.

I guess for now I'm still forced to use Windows machines for most of my production work. Its to bad that I really want a choice but its just not there for my current hardware.

Maybe in a year or two I'll try this whole experiment again. If its still not possible to make the switch then maybe I'll sell all my stuff and buy some new Mac's.