I have the IKEA Dioders, they come with slide-through fixing points with screws and they also come with double sticky pads... so I attached one set to my wall using the fixing points and screws and I put another set on the underside front edge of my glass desk with the pads.
Hmm. I don't remember seeing those in the packaging, I'll have to take a look again, if not I can easily buy some. I was worried double stickies might burn, but if you're using them, I'll check them out.
EDIT: Yep, they're there. Sweet. I'll try those out!
I'd probably use something similar to the way they secure the cable in some UK plugs, a white strip of soft plastic tightened over the top of the wire by two screws either end, only replace "wire" for "LED strip" and "plug" for "desk"
Not the dioder strips I was talking about! http://www.ikea.com/...ducts/50192365/