Ok, first the current stats. I ride a Trek 520 and currently use Shimano 324 pedals.
I like SPDs because of the small cleats and ability to walk normally with the shoes. However, I have decided I want a pedal that has clips on both sides and still has the large platform pedal size. The only other options I'm seeing from Shimano are the 545 and 424.

However, for some reason, I don't like the look of these pedals, especially on a road bike. They look too bulky.
I'd really like something that's like my 324, but has clips on both sides. Are there any other options out there I'm missing? Or.....are there any other cleats that are easy to walk on like SPD cleats? Egg beaters maybe (I don't know what the cleat looks like)?
Any thoughts to help a poor bruddah out?