> Hi - I'm looking for a lightweight set of over the head headphones, that
> has a bright sound, i.e. not muddy or base heavy.

I have a pair of Labtec LT-820s that are lightweight, are *very* comfortable
(excellent cup padding) and have great sound. They're not Bose or
Sennheisers, but at about $10-15 they're a steal. I don't remember where I
grabbed mine - FYE maybe? - but did so for similar reasons; I wanted decent
sound at a cheap price so if I broke them or left them in a hotel/plane by
accident I wouldn't cry.

Looks like you can get them for under $10 now.

http://www.answers.com/topic/labtec-lt-820-stereo-headphones

cheers
b