I highly recommend the mks quick release pedals - very easy to remove them for when you fold the bike for transport. The make platforms in several configurations most of which work with power grips if you are so inclined. They also make a clipless version.

Two things to keep in mind on these pedals. If you need to take your bike on a train or something daily that requires folding - make sure you have a place to put the pedal you remove. It can get a little grimey. Second thing is to triple check that the quick release is fully latched after you snap the pedal back on the bike.

I believe gaerlan.com thorusa.com and calhouncycles.com all carry at least one or two of the mks line of quick release pedals.

If you go with a non-folding and non q/r pedal - make sure you understand what that does to your folded size ... On both my Dahons it leaves the left pedal sticking out there to catch on everything and make the folded size 4 inches bigger!

You know come to think of it - shoot me a private message and I can send you my dahon folding pedals that I took off to use the mks pedals. Free just pay shipping. Practically new. It was my first upgrade.