I'm actually in the market for a new floor pump as well.
I'm currently using a Serfas Airbones that I bought at the LBS a few years ago - my first pump. Frankly, it sucks the devil's ass. I didn't realize what a cruddy pump it was because I've had nothing to compare it against, but I used a friend's Specialized pump (unsure of model) and it was wonderful by comparison. The Serfas just doesn't let go of the valve, and I've ripped a valve stem or two in the last few years just trying to get it on and off. The Specialized went on and off like a breeze, and there was no seal issues like I have with the Serfas. I'd say just go try a few out, if your LBS has several to choose from.