I really like mine, your welcome to check it out sometime. the 305 does alot of stuff and you can get alot of software that does some neat things also. I have the HR and cadence package, it works well I think. the new 705 will have more features, I have heard will work with a powertap, but not sure it's worth it yet.

got mine from geomangear.com, ships very fast and at the time was the cheapest I could find.

If you are willing to invest a little time in it, the 305 is a great product. If you get one, I can show you some tricks for creating maps on Google Maps and then downloading the maps to the 305. I did it for a double-century that I did one day, and never had to pull out a map once in 12 or 13 hours of riding. Very handy. If you're willing to pay more though, wait for the 705.