Neither am I.
And it's intentional.
Well, kind of intentional. I've been stockpiling bolts of netherweave with an eye towards cranking out some bags to help equip the new wave of alts post-Cata. That's about it, though.
Believe it or not, I play this game for pleasure and enjoyment. I've spent the last week or so banging out code and knocking out bugs at work, and when I want to relax, the last thing I want to do it follow a checklist. I've been having a blast exploring the changes in Azeroth, doing the new quest chains, and generally just wandering where I will and doing what I want.
I'm not going to change that when Cataclysm comes out.
I don't know what the vast majority of the quests are until I find them myself.
I don't know what the new zones will be like, except in the most abstract sense.
I don't know what the new dungeons will be like, again, except in the most general terms.
Yeah, when I go to run a Cata dungeon for the first time, I'll read up on it so I won't be a burden to my fellow players. That's about it, though. I'll decide when to run the dungeon based on when it will be fun for me to do so, not when it's the optimal leveling choice in terms of XP and gear.
I'm not going to rush through the content to get to level 85. I'll get there, but it won't be because I've ground out XP the most efficient leveling mobs for 8 hours. It will be because I've done enough fun and interesting stuff that happens to give me enough XP to hit 85.
Also... while I don't really RP in-game, I do have some sense of who my characters are. In game terms, they're looking around, wondering what in the name of the Light is happening right now. They're out doing what they've always done, as heroes: they're exploring, they're investigating, they're helping others. There's no reason any of them would be stockpiling potions or mats or heavy frostweave bandages, for crying out loud. None of them have even so much as seen Deathwing.
The scope of the Cataclysm is not yet apparent to them.
Which is, in all honesty, probably just a convenient excuse for me to be a slacker (though not one of Gevlon's slackers, thank you very much) and do what I want to do instead of what someone else says I should do. I'll hit 85 eventually. I'll run dungeons eventually. I'll be raiding, and even PvPing in the new battlegrounds.
Right now, though, there's too much fun to be had it not knowing what's around the next corner.