I've been doing this for awhile, since 2006. I miss the old pre-BC days of linear dungeons and simple bosses. Some highlights include killing 2 bosses at once in LBRS and Scholo at 60, and doing Durnholde Heroic / Lt. Drake Heroic with Immolation trap in tier3 just after BC release (it took ~2 hours).
I've tried to avoid terrain exploits (or at least what I call them), where by simply moving your character will cause the mob to change it's path drastically. Typically it ends up being pet juggling.
There's a few bosses I knew were possible that I wasn't able to do due to trash. The Ogre in Heroic SH moved very slowly and could have probably been killed by using stay pet, and then despawning the pet by walking to the other side of the area.
I've also known Gehennas was possible since BC-release, but I never bothered because of the 30min debuffs corehounds give you.
I expected many more solo videos of rogues with 100% avoid, or close. Anyways, here are the links to my videos. None were done in 3.0, as I retired about 6 months ago.
WarcraftMovies.com - World of Warcraft Movies