Adding fenders to a Cannondale R600

I have an old 2001 Cannondale R600 that I use to commute and the rain is starting to come down and I realize I desperately need fenders. How easy are they to buy and install for such an old bike? Can you just get generic ones? I read that some racing bikes don't have mounts for fenders but I can't find any other information.

Any info is great thanks guys.