The Crank Brother 5050 is a good choice
http://www.crankbrothers.com/5050.php
http://shop.ebay.com/i.html?_nkw=cra...1&_from=&_ipg=
For something a little smaller, the MKS GR-9 pedal is good.
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This is Africa, 1943. War spits out its violence overhead and the sandy graveyard swallows it up. Her name is King Nine, B-25, medium bomber, Twelfth Air Force. On a hot, still morning she took off from Tunisia to bomb the southern tip of Italy. An errant piece of flak tore a hole in a wing tank and, like a wounded bird, this is where she landed, not to return on this day, or any other day.