In reply to woolsack:
Just realised I got confused and thought you were talking about the Mavic Zxellium pedals, not the Race ones (not enough sleep lately!). I was in Sigma a couple of weeks ago, but wasn't looking for pedals at the time, or I might have given them consideration
In the end, I bought the Time Xpresso 10 pedals from Merlin Cycles.
Couldn't get my head around the Speedplay ones and didn't want to mess around with specialist shoes/adapter plates.