use USB 2.0 hubs. Only thing I don't like is the new hubs I picked up don't power down like my old one did - any USB devices with LEDs light up the room after I shut down for the night.

I went with the bluetooth because I knew I'd want to use it in the future with cell phones and such. I did the bundle because the bluetooth was $50 and the keyboard $70 while the bluetooth/keyboard/mouse bundle was $100. I already had the trackball I wanted to use.