First off, I want to thank all that responded with such valuable info on my last post. Due to the overwhelming response, I am going with the masses, as I have decided to purchase the Edirol UA-5. Now, my next concern is powering this sucker. I'm a little foggy on whether the usb will power this thing or not. Anyone know....or do I have to supply a portable 9v DC source rated at 450mA? I have looked around all sorts of forums (ie Oade bros, Dat-Heads, etree, this one) and have not been able to find one single DIY setup. I don't want to, nor can I afford to pay oade for their power supply at $150 bucks. I do plan on purchasing one of the N-Charge laptop batteries but I don't know if it will be enough to power both the laptop and the UA-5. Would that work since it's usb? Thanks