I've yet to see anyone boot and run XP from a Firewire or USB 2.0 hard disk. If you solve that, then you can do this.
A cheaper solution is to upsize your hard disk in the laptop. I just did this on two laptops with 11G disks. One unit got a 30GB for 47 bucks and the 40 cost a little more since it was 5400RPM and a little bigger. I used a desktop to laptop drive adapter and Norton's Ghost to avoid having to reinstall the OS.
Hope this is an OK place for this topic.
I'm running a Dell Inspiron 8000 with windows ME. I'd like to keep ME running so I can hang onto some of my older programs. However, I'd also like to have XP so I can run some more current stuff.
My internal Hard Drive isn't big enough to accomodate both operating systems, but I have a huge external firewire drive. I'm wondering if it would be possible to install XP and the XP programs on that external drive and set up some kind of boot selection process.
any help is greatly appreciated.