For what it's worth, here's what I'm using for a remote setup:
IOGEAR GBU421 BT Dongle
Sony PS3 Blu-Ray Remote
Remote Buddy Software
With an edit to the IOBluetoothFamily.kext file you can enable wake from sleep for the dongle.
I keep the dongle plugged into a powered USB 2.0 hub as I found that it would cause a problem when directly plugged into a MB USB port.
Other then that, everything is golden.
Always good to have another option.