I think my first piece of advice about Windows 8 to everyone would be this: if you're going to buy a Windows 8 machine, get a touch screen. Microsoft has really bet the farm on touch screens this time, and without that mode of interaction, you'll be frustrated or, at best, missing out. The mouse and keyboard might still be necessary for ordinary desktop mode, but when the Start menu thinks all computers are tablets, you'd better get on board.
Mokalus of Borg
PS - I've had trouble deciding how to replace my netbook when it dies.
PPS - It's not an issue yet, but if it were, I might pick a Microsoft Surface RT.