Congrats on the new ride, they are both beauties! You probably won't be able to fit fenders as-is on the cannondale but a shop (or you, if you are a bit handier than I am) can cut a regular pair of fenders and use bridging brackets to get coverage on either side of the brake. That is what I did with my Ruby last year to turn her into a rain bike (I have the Ruby Comp which is lower quality than yours in both frame & components so I don't feel too bad about riding her in the rain.) I was able to take them off by myself and I think I'll be able to put them back on too now that I've seen how it is set up.

I have a confession to make though - I think this crappy weather is all my fault. Irony tends to follow me... I recently bought my "sunny weather only" dream bike, and we've only had rainy weather since then. I've only been able to put 60 miles on her since getting her built which is driving me CRAZY.

I had been struggling to come up with a name/title for the new bike, until yesterday DH suggested that I call her "The Rainmaker". I think that fits perfectly.