If you go with the Specialized All Condition Armadillos, get the elites, which are a folding bead and about 100g less each than the wire bead versions. I've heard that some people don't think they roll well, but I think they roll just as well as any of the other puncture resistant tires I've tried and are definitely about as tough as they come. I wouldn't want to race with them, but if you want a bulletproof training, commuting, touring tire, I highly recommend them.