The time has come to get my self a decent GPS. at the moment I am tossing up between a Zumo and an Oregon 300 or 400. I like the Zumo a lot but I am not sure I need all the bells and whistles ( I have access to an Ipod and I prefer not to talk much at the best of times so don't need the phone connection). The only other unit that stands out to me at the moment is the Oregon. Being a long time PDA user I like the touch screen interface and think I would struggle with the button interface on somthing like the 60csx. Dose anyone currently use an Oregon? Is there any diference between the Oregon 300 and the 400 other than the addition of pre loaded maps? (Blue chart in the 400c Topo Australia in the 400T) Can I run the Oregon off bike power or is it batteries only? Any other thoughts as to why I should choose one over the other? Thanks. Paul.