I have a DCT-6200. What is the possibilities with the USB connections? I have external hard-drives, a camcorder, a camera, a webcam, a cellphone USB, wireless keyboard & mouse, MP3 player, and logitech 676 remote (all USB connect). Is there any cool things I can do with any of this stuff (besides starting my own computer store)?

You can't do anything!

Really, do you know why they exist then? Are they for future?

Motorola made them to be future-proof. Most (of not all) cable providers disable them. The only ports you can use are the HDMI (to connect to TV) and Firewire (to connect to computer to use as a tuner).

Thanks for your time hehe! Happy New Year!

(If you've got a PS3 or planning to get one)

The USB port on the front of my DCT6200 works great as a recharger for the SIXAXIS controller (for the PS3), even when the box is powered off. Best part is it all fits neatly inside the cabinet instead of on top, where my PS3 sits vertically.