All my bikes have dual-sided clipless spd compatible pedals. I've got 4...all set up for commuting. Shoes purchased over the last 10 years include Specialized Rockhoppers, Cannondale touring, Specialized Sport mtbs, Diadora Road shoes, Nashbar mtbs(BIG mistake...they're crap), Lake Winter Road shoes. The only one's that can be worn off the bike and not make noise on a wood floor are the C-Dales. The combo of a deeper recess and shallow cleat allow this. The pedals are an assortment of Wellgo, Shimano and Nashbar(the pedals are ok once they get 'worked in'). The advantage is that I can ride any of my bikes in any cycling shoes I own. My wife's bike has Shimano PD-520s w/Diadora Saturn mtb shoes. When doing repair/adjustments on her bike I can 'take it for a spin' in any of my shoes. We're getting her a pair of Lake touring shoes and some good road shoes along w/a new bike this next year. I'm set...well maybe a fixie...

All that being said, I'd get eggbeaters nowadays, but it would cost me a small...well may be NOT so small fortune to do the switch.

If it ain't broke...