Lego has an extensive support site for Mindstorms, and here is their London Mindstorms HQ.
Want to see a NXT play football? See it in action on the Mindstorms Movies page! Okay, maybe that's a bit far-fetched, but it looks like a really cool bot.
Oh, did I mention that it comes with USB and Bluetooth support? Program the NXT from your PC, and download the instructions to make it do exactly what you tell it!