[Rover] Which GPS unitd do you like for roving

[K4IDC]

I'm planning to Rove in the June VHF contest for the first time in many
years. I'm working out operating positions using Google Earth. I'd like to
fly a nice GPS unit for the vehicle that I can easily transfer the Google
Earth points into. A unit with voice commands would also be very nice. What
recommendations would you make? Thank you for your kind consideration.

Thanks,
Robin Midgett K4IDC