You may wish to consider the dark age side and forego clipless altogether. I just did 73 miles on my touring bike after upgrading the pedals to this quality sealed cartridge BMX platform with set screw traction pins:

http://www.nashbar.com/profile.cfm?c...tform%20Pedals

They are toe-clippable, and the plan is to add them, but I was actually quite surprised by how well they held without them. I like the idea that I can get a good platform without having to use clipless and keep my feet tightly bound in a cycling shoe all day. The plats are far more comfortable than the quill pedals I was using before, and I'm sure that once I get the clips and straps hooked up, they'll be every bit as secure as my ATACs