I've sung its praises in the past, but there's even more reason to try out The Secret World now: it's now subscription-free, and it's only 15 bucks on Amazon -- basically the best bang for your buck you can get when it comes to MMOs right now. It's got great writing, great atmosphere, and best of all, Funcom isn't trying to screw people who aren't paying subscription fees. There are no restrictions for free players. Hope to see you there (when you're not playing WoW, of course).
How exactly does the "You've entered too many instances recently" thing work? Is it account-wide? And what is the time limit on it? I try to farm some instances, but I never know when that barrier is going to lift.
It is indeed account-wide, and it expires an hour from the first instance you entered. Pretty easy to wait out for a normal non-robot-farmer human.