Let me keep this brief. The ZyAIR B-2000 is a great product. Especially if you are worried about people hijacking your wireless network.This is probably the best looking wireless router on the market, and has a "Mac-Like" pulsing blue light that lets you know when the product is sending data. It has a really easy to use web interface including a "set-up" wizard, and for the techies out there you can telnet into it.
The nicest feature is that it has a built in 802.1x user database. 802.1x is an industry standard for controlling user access to a network. Many other APs say they support 802.1x, but they require you have an expensive RADIUS server that actually does the user control. All they do is pass the information through. The B-2000 has a built in database so you don't need a RADIUS server. You just setup the user info on the B-2000 and it takes care of the rest. I also got a B-100 card for my laptop. With it came a free version of an 802.1x client to run on my laptop to use the authentication.
It was all very easy to set up.
I've had no problems with dropped connections, and the range beats my friend's Linksys.