Hey fellow hunters

I found these forums through a post on http://www.outdps.com and seeing as I've been using petopia every now and then to find cool looking rare beasts to tame I thought i'd upload a guide that I wrote a little while back for catching Arcturis.
First of all if you don't know who or what Arcturis is, he is the rare spirit beast bear, there's a picture of him here:
Arcturis

This spirit bear was added in 3.3, so far there are four tameable spirit beasts in WoW, these are;
Gondria
Skoll
Loque'nak
Arcturis
Going BM
Unfortunately you must have the the talent Beast Mastery to tame spirit beasts which involves speccing fully into BM. At the moment BM isn't really competitive for raiding, but I have a feeling it soon will be. In the mean time I've picked up an arena PVP BM spec to mess around with. I've uploaded my spec here Link
Note: It might be worth picking up a PVE BM spec to start off with as when you tame him he will be 75, and I assume most hunters will run random heroics to level him up.
Where to find him

(Arcturis spawns in the red circle, ignore the blue and green areas, that's an addon)
So far there's only one known spawn for the bear, which is just north of Amber Lodge in Grizzly Hills (around 31,56). I camped on my flying mount hovering above the slope that leads down to the river. It's worth noting that there's a rare mob called Seething Hate which is part of the meta for Frosbitten that can spawn nearby too.
Camping the bear
Now you've got the area sussed it's only a matter of time until this awesome pet is yours. If you don't have the addon _NPCscan I would go and download it as it will come up with a warning and play a sound when a rare mob is nearby. I also put the following macro on my bar and spammed it occasionally to see if anything came up.
/cleartarget
/tar arcturis
/tar seething hate
/tar grocklar
/tar Syreian the Bone
/stopmacro [noexists]
/tell Hafoot Found %t
This will whisper you when you target any of the mobs on the list (arcturis and the 3 rare mobs in Grizzly Hills). Obviously replace Hafoot with your name.
From what i've read he's on a minimum 6 hour respawn timer, so if you find his corpse then tough luck, you'll just have to come back in 6 hours or so. I would recommend early morning camping when there's not many people questing, as low level players can easily bump into him and kill him. Unfortunately I think he sometimes walks around directly next to an Alliance quest giver by the river. I managed to tame him at 3:12am game time.
AND DON'T FORGET TO PUT YOUR CURRENT PET IN THE STABLES BEFORE YOU GO HUNTING.
When you finally find him, put a Freezing Arrow between you and the bear and tame him, simple as that. Be careful you don't attack him, a full raid geared hunter could easily kill him by accident.

He's very rare, so you must have patience if you are thinking about camping him. Note: He has the same abilities as the other spirit beasts and is more of a collecters pet than a raw dps pet.
Hope this thread helps someone out there.
Happy hunting!