I just bought a nicely priced set of Peltor A/O Safety ear muffs/hearing protection for $49 at Home Depot that has a built in AM/FM digital tuner and AUX input!!
I will highly recommend them for working on and fabricating on a car!! Cuts out 22 db and has great music input. The AM/FM radio uses batteries.. but the AUX input from your iPod or MP3 doesnt require any batteries. The radio sucks flat out.. needs a better antenna.
Combine this headset with your blackberry and pandora radio.. and its perfect.
With my car on the rotisserie and working 3-4 hours at a time with a air chisel and 4 1/2" angle grinder it makes life a lot more relaxing.
** I'm not trying to sell this.. but if anyone is looking for a nice headset with hearing protection, its awesome **