Well, you might get lots of recommendations and my recommendation will require special shoes, but IMHO, totally worth it. Especially if you wanted to do clipless but always had the typical clipless reservations.....

SHIMANO CLICK'R - TECHNOLOGIES - CYCLING FOOTWEAR AND PEDALS - LIFESTYLE GEAR - SHIMANO

Click around through there. (pun intended)

Get the basic shoes & pedals and you'll have a blast without hurting your feet or walking like a weirdo!

Direct link to the standard PDT400 pedals.....

PD-T400 - PEDALS - CYCLING FOOTWEAR AND PEDALS - LIFESTYLE GEAR - SHIMANO

And shoes.....

SH-CT40 - TOUR - CYCLING FOOTWEAR AND PEDALS - LIFESTYLE GEAR - SHIMANO