bluetooth help please

i have a nxt set, and i allways upload my programs with the usb cable included in the kit, but i want to get a bloutooth dongle (?) so that i dont have to take the wire out of my robot everytime i want to test out the program.

My questions is, do i have to buy the bluetooth dongle that lego sell, or does anyone work? and also, which is the cheepest one one the market.

Thanks,

Thedobbster

Any BT Dongle will work aslong as it supports COM ports, which I think most of them do that

I use a kensington bluetooth dongle. Not any dongle would work. Some cheap ones would not be able to be used with the nxt.