Shimano refreshed the XT pedals for 2016, so the "old" version (which is basically the same thing with a different platform, and generally regarded as the most bulletproof setup ever) is crazy cheap right now:
Amazon.com : Shimano XT PD-M780 Mountain Pedals : Bike Pedals : Sports & Outdoors
Amazon.com : Shimano XT PD-M785 Mountain Pedals : Bike Pedals : Sports & Outdoors
$63 is a hell of a deal, they last forever.
SPD cleats, right? I have a few spin instructor friends (spinners, which I gather is the technical term for a spin bike, are SPD) who will probably want to hear about this.