Originally Posted by
directhex
the apps you name largely won't run - photoshop <cs3 misbehaves, so does office xp.
64-bit exclusives are unlikely, but 64-bit enhancements are already in the wild.
an OEM license allows you to replace any component other than the motherboard, as you see fit - just stick the new disk in & reinstall. do not be afraid of activation, even over the phone.
a retail license doesn't have the motherboard restriction - reinstall as & when you want, as long as you only ever have it installed for use on one pc (i.e. an old hard disk somewhere won't cause anyone to lose sleep, just don't say you have it on desktop+laptop but don't use both computers at the same time, that IS a violation)