I happen to be doing the same thing with my warlock, and I'm finding that destruction is the ideal spec. I'd recommend everything over at EJ destruction thread (as well as our own column) for all your warlock needs.
Do we know for sure that the next expansion will be announced at BlizzCon 2011?
It's not a "for sure" thing, but everything that I've heard from internal sources as well as just the every-two-years nature points to yes. WoW Insider is sending 10 people to BlizzCon this year, so that's how strongly we feel the next expansion will be announced.
What is the current thought on patch 4.2 going to the live server?
If I had to guess, I'd say anywhere between next week and the end of the month -- but I don't have any special knowledge about this.
Why do people purchase Enchanting Vellum on the AH for more than 10s when they could buy it for that from a vendor?
Laziness, pure and simple. And you know what? I hope people take advantage of that laziness, too. It's the buyer's own fault if they can't just visit the enchanting vendor.
Which playable race are the biggest perverts?
Gnomes ... did you have to ask?
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