If you want your PC to give you that Christmas feeling all year round, you might want to invest in GlacialTech's $200 case lighting.
We happened to catch it at COMPUTEX '08 and we initially thought; wow, that looks tacky.
Then, it began to change colour. Hmmm, things get a little interesting.
Soon after, we realised that it wasn't just changing colour - it was being changed, by remote control! The super-tacky remote had us amused, and for a moment, the lights were almost cool.
There's various colours, and you can set it to blink, rotate, or just stay on your colour of choice using the handy little remote - which comes complete with eye-poking antenna.
It is ultimately just a very expensive gimmick, and we'd never spend $200 on it, but, if you've got money to burn, it's a gimmick that'll make you grin for a few hours minutes.