I'm a day9 fanboy for what it's worth...

I can't be bothered to open a teamliquid account, so I'll just bug you guys again: in 3v3 we always seem to get smoked by TTT with MM or mass marines at the first push. We're PPR, and I'm pretty positive that our plan for next time is probably good: Get lots of sentries and zealots (charge asap) at the start and then get collossi / high templars when it seems safe.
Fast templars aren't good cos we get killed before psy storm fisnishes researching. collossi are a bit faster but more of the same.

I've never had trouble with MM/whatever in 1v1 fwiw... but with a combined force in 3v3 it's pretty devastating.