I'm currently rolling back and forth down Venice Blvd. on a pair of 27" by 1 1/4" crusty Bontrager Sport tires that came with my old road bike. In two weeks I've gotten two flats. The good news is the tires are so old they are really easy to get on and off the rim.

What's the best "value" in Kevlar reinforced tires for commuting and or touring?

Also I'm 5'10" and 202 lbs, do I need a larger tire with lower pressure?