Facebook User wants a Bluetooth earpiece for my Sprint Blackberry for $150

She wants it by: April 21

Why does she want it?
Come July, LA is catching up with NY and banning cell phone use while driving - unless it's hands-free. If you ask me, asking Beverly Hills wives to figure out a headset while driving is even more hazardous than holding a phone, but nobody did ask me... Anyway, I have a Sprint 8830 Worldwide Blackberry and would love recommendations on great, reliable, comfortable Bluetooth earpieces. I have no idea how much they should cost, actually...