When I go full-time, I plan to have the same desktop setup as I do in my parents house. Two 15.6" laptops and a AMD desktop, plus two 6" studio monitors, 10" studio monitor subwoofer, audio interface, MIDI controller/keyboard, hard drive safe that fits all 12 external HDDs I own. That and their related accessories & required components. A UPS for the desktop box and LCD monitor to protect them from dirty power and outages.
Little screens include a KINDLE FIRE HD, iPod touch 4th gen, SAMSUNG GALAXY Light T1399 "smart" phone, PS Vita, NDS Lite, plus a SD cheap chinese digital projector (why HD projectors haven't came down in price like TVs have is beyond me).
For TV entertainment an XBOX 360 and it's games & plug and play TV games
On a side note. Electronics are the worst store of value I can think of, losing at least 30% of their market price within a year. It pays to be a late adopter and not picky with how it looks. Remember that electronics ALWAYS go down in price!
Typing this on a laptop right now, which has a 5 hour battery life.