Just scored an old pair of DA 7401 pedals for $15 and now I need some cleats. I notice the imitations are easier to find and cheaper than the genuine Look models. Does it make much of a difference? I bought some nice shoes since I've been told that's the smart place to spend money in this category.
I use both look delta compatible and look delta genuine (two pairs of shoes). Both will do the job well. The genuine ones are a fraction better as they have special surfaces on the contact points, however I wouldn't bother changing from compatibles to genuines just for that.
You can get the genuine ones quite cheap mail order, I got mine from probikekit.