Here's how I spend 25 minutes ago making the below.
Basically nowadays illuminating keyboards are convenient to use under dark environment. However price for each KB doesn't come cheap. Moreover, mobility is an issue as i love to work around wireless. Esp watching my favourite shows from far apart. Thus, an intuitive approach is needed to ensure I get a good vision of my KB during total darkness sitting near to my computer desk.
As I fiddle through my years of computer junk. I've found a pair of CM White CCFL and Sunbeam UV CCFL. UV's are great to bring the white contrast out of the KB wording, But White CCFLs are proven to be reliable other than lighting up the KB.Hence, my pick was on the white CCFL. Grabbed and old 6 years old psu to power the whole light. Basically the 24pin have been short circuit.

A quick look on my KB and its drawer. Its hard to find the key when its totally dark.

Bought some adhesive from our local store.

Place the PSU on the bottom of the computer's shelf rack. Just nice and partially hidden from view.

Sticking the CCFL module on the KB drawer. Wires to both CCFL weren't long enough thus, this was the best location to place it.

Sticking on top of the drawer. This CCFL will light up the Keyboard during dark hours.

Another at the bottom conveniently allowing me to take stuffs and browse along items stored on the shelfs.

Switch placed at the most accessible area.

Final Look on my KB under pitch black darkness. Ample light eh?

Overall look. satisfying

Cheap and good.
Basically I've only used the doublesided tapes only. The elephant glue comes handy in the event the tape looses its adhesiveness. So far its still glued to the wood. Nice, cheap and satisfying.