Well, I have one of the notoriously dumb version 1.6b Xboxes. What is the best way to upgrade the hard drive on this softmodded Xbox? Rather...the easiest. Without buying a modchip.
Below is 2 links to upgrading your softmodded Xbox HDD. I have a softmod and upgraded it to a 320GB drive with no trouble. http://forums.afterdawn.com/thread_view.cfm/1/203286 http://www.xbox-hq.com/html/xbox-tutorials-153.html