[QUOTE=tatfiend;9138572]I have never seen or heard of metal conversion assemblies. The plastic ones are offered at the below link.

http://www.amazon.com/Dimension-Inst...556438&sr=1-31

those are interesting, but they seem to be more of a "spd cleat adapter for your shoe" thing. also, with toe clips do they feel like a regular clipless shoe when you use them, i.e can you unclip and clip at will. also, they don't look like they would be fun to walk in.

I had some of the cheap Nashbar plastic ones and they flat out didn't work. I have some cheap platform pedals that I swap. I pedal wrench (or 15mm) and about 1 min and now there's platforms. The dual pedals looks cool.