I much prefer steel bikes to aluminium ones. My Jamis Coda is so comfy on our potholes and such. I have an aluminum MTB that I ride occassionally (I am selling it this summer), and I just don't like the ride of it, even with it's shock.

I've put thousands of miles on my Jamis, all commuting (28 miles round trip) in all sorts of weather. I've never had any problems with it. Jamis is a small company, and makes very high-quality bikes.

Best of luck in your search.