You all might also want to check out a Kershaw Skyline. A 3" blade, weighs only 2.3 oz, oh and made in the USA. Picked up at WalMart for around $30.

My EDC for a couple years now. Love it.

http://www.amazon.com/Kershaw-Skyline-Knife-Textured-Handle/dp/B001CZBDF8/ref=sr_1_1?s=sporting-goods&ie=UTF8&qid=1340944257&sr=1-1&keywords=skyline

I actually got the firefighter version of this knife off of ebay, but nearly the same price and almost EXACTLY the same. Do not buy this knife.

The screws will eventually get worked out of their holes, the knife is not as sharp as it should be no matter how much you sharpen it, the seatbelt is rumored not to work so I've heard, haven't tried it myself and I've heard some even say that the window breaker will become dented on the window.

If you want a better EMS knife-

This is one of the best knives for just a basic non-serrated blade: The Kershaw Leek

For a serrated blade that is nice and tough: The SOG FLASH II

For a great rescue-specialty knife: The Gerber Hinderer

EDIT: For another simple go-to blade: The Kershaw Skyline If you are a NutnFancy fan, here is his video on it. Kershaw Skyline: "EDC Hall of Famer" by Nutnfancy

Also, Kershaw Skyline for ~$40. It's my current EDC