Topeak Road Morph w/guage. Extremely easy to use and it saved my @$$ yesterday after getting a flat 25 miles from home... Waaaaay better than the Blackburn AirStik which is a PITA to use and takes 5-10 minutes of tiresome pumping to get anywhere near a desireable pressure. Good thing the Road Morph fits in the same bracket as the AirStik so i didn't have to lose a water bottle cage or strap it to the top tube.