Externals are somthing I know next to nothing about. I almost bought an Iomega 500 Gig one yesterday but I wasn't sure if it'd even work on this or my eventual new Laptop.
My plan is to have all the programs on my laptop and all the data (Music/Roms/Photos/Videos/Documents ect) on the External.
500 gig HDs seem to go for more online than they do in person and that's the kind of HD I want.
What brands are the most reliable and have the best compatability with XP pro/Vista Machines?