Since the response to this wasn't to bad il give a bit more information. I know that probabaly more people would join in once we got it going and obviously there are some individuals who don't read the forums.
Sorry for the long post but it's got every boss that we can possibly attempt.
OK, I shall list all of the available outdoor bosses (including city bosses) there locations and an estimate on the amount of people it would take to attempt them.
Dragons of Nightmare
These dragons are world spawns located in Duskwood (Twilight Grove), The Hinterlands (Seradane), Feralas (Dream Bough) and Ashenvale (Bough Shadow).
Emeris: Due to it's difficulty in tracking Emeris has been slain the least out of the four dragons. Nature protection is helpfull for this encounter but Emeris is immune to all nature damage. this encounter should take no more then 20 man.
Lethon: Is considered the hardest of the four, Same with Emeris this should take 20 men or less.
Taerar: I'm not sure about Taerar and her difficulty at BC level but it's the only dragon that will require proper tactics and a certain type of raid setup, shouldn't be to difficult with 20 men or less.
Ysondre: Is known to be the easiest of the four dragons and would be possible to attempt with a 10 man raid group.
Outdoor Azeroth Bosses
Azuregos: Probabaly one of the most encountered dragons throughout Azeroth. Azuregos can be found hiding in Azshara near the Elf Ruins of Eldarath. This will take no more then a raid of 10 geared lvl 70s but more will obviously make our lives easier.
Highlord Kruul: Is very much the same as Doom Lord Kazzak and was set to replace Kazzak in Azeroth. he may reside on Kazzak's old sport in Blasted Lands but his spawn point is random throughout Azeroth and all positions are unknown. This would take 10-20 members as his moves are very much similar to Doom Lord Kazzak.
Quest Chain Bosses
Maws: This boss could be possible with 5 members as Pre TBC was recommended 15. It is part of a long quest chain starting from
Azuregos's Magical Ledger Anybody who wants to have ago at this is welcome.
Prince Thunderaan: One of the most famous bosses to date, this may take a group of 20 to complete, he resides in Silithus and requires a rather long quest chain to be completed that even myself am unaware of where it starts. will have to look into this as he is one of the bosses I would very much like to take down.
Twilight Corrupter: He resides in the Twilight Grove of Duskwood and can be handled by 10-15 SSC geared members. so a guild raid of 20 should sort this guy out. he is part of a quest chain called
The Scepter of the Shifting Sands This was for the opening of Ahn'Qiraj but is still available to anyone who would like to obtain the scepter so this boss remains in place.
Noteable Alliance Leaders.
As you are aware that all of the following would be best attempted with a raid of 25 man or more due to there location.
Highlord Bolvar Fordragon: Is the Raid encounter of Stormwind, shame we can't kill that little kid instead.
Magni Bronzebeard: The King of Ironforge, there is no easy way to reach Magni other then the front enterance.
Gelbin Mekkatorque: The King of Gnomes, I know we have some real gnome haters in the guild so possibly more people interested to see this guy die. He is one of the easiest as we can run into the Deeprun trap and hold that position to recover, rather then the constant attack of guards.
Tyrande Whisperwind: High Priestess of Darnassus, Another leader that shouldn't be to hard due to the fact Darnassus is rather empty.
Prophet Velen: Leader of the tentacle people. Hiding in his spaceship he is rather easy to kill as the Alliance don't visit here often. Would be an easy trip to kill Tyrande and Prophet Velen in one go.
Jaina Proudmoore: Can be found up a tower in Theramore, the encounter can be tricky due to the enclosed space but the lack of Alliance make Jaina another easy target.
Ok i've covered the major targets hope you all find this informative and we can make a strike on somebody or something soon.