God I love Vegas.
For the MTT, people are reporting good things about the events at Caesars
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Haven't played one myself, but lots of 2+2ers like the reasonable blind structure.
You can find mid to high limit action at MGM (a great room), Bellagio, Wynn, and Binions. I don't know about 10/20. I've seen lots of 5/10 and 15/30. I'm sure they spread something in between, but I can't remember seeing it for some reason.
For your wife, you might want to recommend other non-gambling activities. Vegas has every possible retail shop imaginable, and lots of crazy free attractions -- lions at the MGM, the Bellagio water show, etc. Other than that, Pai Gow is the way to go.
Craps is not
