I'm in the market for a scanner. I need to be able to scan documents so I can edit them in Word. I will only be doing a few photos. I'll be using the scanner about once a week. Should I save some money and get a USB Epson, Canon, or HP, or should I spend the money and get a Firewire Epson or Microtek? What is the time difference between a FW and USB? Can anyone recommend a scanner?