I bought a pair of Saucony ProGrid Razor's. Had them out last weekend and intentionally walked through mud and puddles just below ankle high to test them out and stayed nice and dry. It's cold enough that my feet didn't sweat either, though the hike wasn't that long. This weekend will be a better test, as it'll be raining/snowing most of the day, nice and chilly, and plenty of water/mud on the trail. Might be some spots where the water is above the ankle bone, so I'm bringing the 3mil trash bags for that so I don't have to swap out shoes. Never tried that before, but I figured, what the heck!
Here's a link to the shoes: http://www.saucony.com/ShoeDetails.aspx?gen=m&use=Run&id=1161&rel=1118,1110,1107,1148,1109,1138,1104,1113,1041,1076,1102,1067,1064,1062,1146,1134,1161,1136,1155,1157,1159,1152,1150