Michelin Ironman Tires

"Buy our stuff because we got the IM brand put on it."

Seriously, I doubt there is much difference between them and the Pro Race 2/3 models.

x2.  They are rebadged P2Rs (don't *think* they've done it with the P3Rs yet, but imagine they will).

Yup, P2R's. Says so right here. http://probikekit.com/display.php?code=Y11405 bucks for the IM branding isn't bad :P

What's the consensus on P2R and the P3R? I know the P3R is supposed to be the best of the best, but do you guys save those for racing only? I get the impression the P2R would be more of a trainer tire. 

The P2R is an excellent tire for racing (or training).  The P3R is supposed to improve on the P2R in pretty much every way.  You could use either of them for training, racing, or both.