We have Avid, Sorenson, Photoshop CS2, After Effects 7, Audition, Encore, AvidDVD (or whatever it’s called) and Illustrator CS2 installed on the same machine. Actually, one machine has Avid Xpress Pro with all the other stuff, another has Media Composer with the other stuff, and our older system (Windows 2K) runs Xpress Meridien 6.1 with After Effects 5.5, Photoshop 7, Boris Red 2.5, Sorenson, Cleaner XL, Roxio, and Audacity.
No conflicts on any of the systems. Installing another editor–maybe you’ll get away with it, maybe you won’t. I’ve heard of people installing FCP and Avid on the same system, and Premiere Pro and Avid on the same system without a glitch, but it’s definitely recommended that you not run two editors at the same time.
Try it. Worse that could happen is that you have to wipe the drive and reinstall.
Good practice, though, is only put the software you must have on the computer–I’d leave the word processor stuff to another computer. If you’re using your editing machine for MS Office tasks you’re not editing enough.
Mike.