This one caught my eye. It's a good deal on the M-Audio SP-2 sustain pedal. I'm not a big fan of M-Audio gear, in general, but these pedals are solid, and have polarity switches so they are compatible with all keyboards. I have a couple of them. They are a great choice if you like a substantial feeling sustain pedal. And, unlike the Roland DP pedals, these seem to last. At $12.96, that's a good deal.
M-Audio SP-2 Sustain Pedal with Piano Style Action for Keyboards