[trevius]

From playing a rogue on Live, I seem to recall that only cash and tradeable items could be pick pocketed. I think there may have been other restrictions as well, but I am sure that no drop items were not pickable. Since I spent most of my time raiding, I normally didn't bother with the skill at all. The only time I really used it was while soloing and that was only to build the skill up. Normally, I remember getting mostly just cash when pick pocketing. I do seem to recall some rogue quests that required you to pick pocket an item off of certain NPCs though (maybe rogue epic 1.0).