As a Mac user, I use software from SecuritySpy.com and it is by far the best I've seen for the price point. Starting @ $50.00.

They have a nice list of supported cameras as well

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2007 M6 Coupe
Sapphire Black w/Black Full Merino Leather
Radenergie R5 - Michelin Pilot Sports - H&R Springs
2006 X5 4.4i

"Happiness is not around the corner.... it is the corner"