I bought a new scale this week that has a bunch of bioelectric moitoring capabilities to it. It shows not only weight but also body fat, hydration, & bone density.
It should also insult you if you gain weight: "Hey, there Fatty. Watch where you're steppin'."
However, it looks like I won't be needing the insult function, as I've dropped ten pounds and cut a percent and a half body weight since last fall. This leaves me feeling much more myself, and a little more yummy.