So this past weekend my girlfriend and I went down to Virginia Beach and camped at First Landing State Park. Everything about the trip was awesome, except that on our first bike ride I went over a large piece of glass and flatted out my rear tire. I didn't stop for ~200 feet, and the leaking tube got 3 more pinch flats during that time. The resulting mess wasted a couple of hours of our time over the remainder of the weekend, and the gash in the tire went to the fabric, so I'll probably have to throw it out.

So, I've resolved that I will no longer be a cheapskate and buy medium-cheap tires (currently IRC Duros w/Kevlar belt). I must find the Holy Grail, a 700x28-32 tire that will simply shrug off all that crap on the roads. The puzzling thing is that my girlfriend, on 27"x32 mm Conti Ultrasport tires (and before that some OLD gumwalls), has NEVER HAD A FLAT despite commuting 13 mi/day on the DC streets.

Any recommendations for those impervious road tires?

PS- How are the Conti Contact tires which Nashbar currently is selling? I found a good review of them on epinions. They are heavy (500g for the 28mm version) and offer a 1-year guarantee against tire failure... that would probably be 4000 miles for me.