I also reccomend eggbeaters. Fantastic pedals...I really should have bought them sooner.
Plus you can get them as cheap as $50 online.
Best aprt with beaters....4-sided entry...never have to worry about the pedal being at the wrong point of rotation. Plus the cleats have no front/back...you have to pick which is left and which is right though to determine your release angles.
Seriously...I have went fom Shimano M-505s, VP-101, back to M-505, to Ritchey V4pro, to eggbeaters....and the eggbeaters win, hands down.