I use the original Shimano SPD pedal and cleat system. It is a mountain bike system but it allows NORMAL walking which I prefer. I had early Look system and did a few skids on the "ball" and in this hilly neck of the woods (Seattle) I did not like starting/stopping on grades and not knowing if I might skid through the intersection.
I just got a Madone about 6 weeks ago. The 5.2SL but mine came with a triple and had the shop replace with a Shimano 27t rear cassette and I have already lowered the front from 30t to 26t aftermarket.
Hope you get some dry weather and ENJOY the new bike.