I guess I could forsake my iMac Desktop...

...but I'd need a 27 inch, quad core iPad, with plenty RAM and a terrabyte or so of local storage, on a desktop stand, with a keyboard, mouse and graphics tablet to replace it ;)

I don't see RFID implants being necessary. Not for preference tracking.

Facial recognition is getting pretty powerful... and I doubt that remote neural impulse scanning is too far off (so soon it won't be necessary to wear a headset / electrodes for that).