Having 2k-2.3k raid buffed? I have around 2.4k self buffed with Battle shout and Rampage. I normaly run with 2 palies in Kara and around 4 or so in HKM and Gruul's. If that's the case I buff my base stats by 10% and add an additional 225 AP and I'm normaly around 2.6k-2.8k AP. After the paly buffs and my self buffs I still have the enhancement shaman's buffs (the one where you get the 10% of his AP everytime he crits or something) and the strength totem, I normally have over 3kAP (I also have the BEAST elixir too) and thats when you start to see the 2k BT's with the 1h, but my 1h is the sux. I have the Vindicators Brand and I can't wait to get the Merciless Gladiator's Cleaver. I know its a little less hit, but the DPS is better and so is the top end...so my BT's should hit a little more than 2k-2.2k.
I'm just trying to show you the numbers you can get when you have gear, I'm not trying to showcase my gear although I finally got my fourth t4 piece from HKM last night..(been in there since march killing that guy), so i'm ecstatic about that. With all that said I still have around 33% to Crit, so you just have to balance out your AP, Crit and Hit.
I think 3k AP becomes the break point for 2h's and Blood Thirst btw. 2k AP is too easy to come by.