07-24-2009, 05:58 PM
I use my powerbook g4 with an external screen, mouse and keyboard when at work. Works fine. I'm also networked to the work server so I use ethernet instead of an external HD. There are no cons as far as I know. If you have a bunch of external USB devices (kb, mouse, printer, etc) invest in a USB hub or buy a monitor that has USB ports. That way you'll minimize the plugging in/unplugging you have to do. I installed a large HD and also keep commonly used files mirrored to iDisk rather than use an external, though I do always have an external plugged in at home that functions as my backup drive using Superduper!. If you have Time Machine and a Time Capsule you could save that mild hassle.