Okay! here's my first shot at this, so here goes! After seeing Tron Legacy (plot was okay, art style was amazing... and I'm glad it had a huge amount of physical effects) I decided to make a theme for it in rainmeter, cobbled together out of other themes because A. I'm lazy, and B. I'm not a programmer and not really sure what I'm doing with this....
fortunately, rainmeter doesn't really mind if you use one thing from somewhere, and another from somewhere else!
Because this, strictly saying, isn't my work but instead the work of others put into context (and so you can really just replicate it) this is what I've got going on.
this computer is running XP, but I have [link]
the taskbar eliminator. Now, it doesn't actually permenantly remove it, just do more of a perma-hide. with a keystroke (Alt-T) you can toggle the taskbar, and with another (Control-Alt-T) you can toggle your settings on it.
The 3 major things in this rainmeter theme are: Enigma (launch buttons) which you can get in 1.3 and directly off the rainmeter site, Blue Vision [link]
and Spaceview [link]
the background is browse .deviantart .com/?qh=§ion=&global=1&q=tron+legacy+city+concept#/d26v7w6
Personally, I don't think it's too bad looking for a first shot at this.....
EDIT: I JUST realized I forgot to mention this, but if you look in the lower right, you'll see it's ready for a temperature reading! If you have SpeedFan running [link]
it'll feed you the temperature data needed for this.