I hate presta valves!

[sgtiger]

Unless you're running very skinny racing tires, you should be able to get tubes with schrader instead. Some of your cycling buddies might think you're fred though.

Also, there is a valve adapter available that screws over a presta valve to make it compatible for a schrader pump head. They're around a buck and most LBSs have them in a jar on the counter. I carry one around in my tube patch kit, just in case I ever forget my pump (luckily I didn't need it that day and I was on a ride with a lot of bike mechanics too) again and need to use the gas station air pumps. Haven't had to use it yet. I'm very forgetful and even rode off without my helmet once. Oops!

ETA: Here's what they look like:
http://www.ebikestop.com/innovations...brass-4381.php