To cyberpunk my room...
I would take at least four Monocolor (preferrably green) screen monitors (thinking apple IIe), mount them on the wall above my bed, displaying various chunks of scrolling code, or BBS information.
My bed would be replaced with a single tattered mattress, suspended on blocks of styrofoam.
Light fixture replaced by a single, yellowed, humming lightbulb within a skeletal metal fixture.
A poster of Wintermute's Avatar.
Wires of various girth and length snaked around everything
i would set my PC home page to
easternseaboardfissionauthority.com
(safe link - its the aztec pyramid that Case saw when he jacked into the matrix via sim-stim interface)
Every Mars Volta album in my iPod set to play random tracks 24/7
I have this crazy old computing device that i have never really figured out - it has knobs and lights on it, and has glass tube numbers that scroll at random... it looks really cool and retro techy...
multiple computers (got that already :P)
uhhh... and a hat that says "#1 cyberpunk"