I hear alot of people saying enhancement shamans are worthless in the end-game, mostly due to boss's AOE attacks.

Im not sure I believe the hype, if this were the case then rogues, fury warriors, ret pallys and other up-close-and-personal toons would be just as gimp.

Im asking because Im about to start farming honor and marks for my High Warlord Cleavers and a few bits of armor. If I really will be forced into elemental for end-game, Id rather make the switch now, as much as I want to stay enhancement, I dont want PvP to be my only source of end-game play.

Enhancement Shammy do just fine in the end game raid.  My shammy can easy top the DPS meter in Kara.  Yes some boss you need to run from when they do special moves but everyone that not the tank need to do as well.

Thanks for that. I really need the encouragement. Im grinding for my High Warlord Cleavers in PvP, and pretty down that there is no armor suited to me besides savage gladiator.

Well, strip me naked and put two nice axes in my hands, Ill still be a wrecking machine