Welcome to the Wii corner that provides you with extensive info on the use of USB port for mass Top extrenal hardrives. From this link you can go to forums, read articles and gather enough knowledge on this within a short span of time. You can discuss your problems with the other members on board.
While comparing USB vs Firewire, it is very important to take into account the speed part. There are many websites educating on this. But there are very few which will give you data to understand. This webapge comes up with relevant data like “actual data transfer rate [of USB 2.0 High-speed] will be lower than 480 mbps (57.2 MB/s). Our measurement result of data transfer rate with USB 2.0 storage device (HDD) is about 20 - 25 MB/s on average." Check out for an informative account of speed factor of USB vis-à-vis Firewire.
