Ooh ooh ooh! I got this one.
Capitol derives from the Capitolium, a temple to Jupiter which sat on the eponymous Capitoline Hill in Ancient Rome. Legend has it (probably falsely) that a human head (caput) was found when they were digging the foundations for the temple. Hence the name of the hill and all things associated with the center of the Roman state. As for capital with an A, it's only used as an adjective and is prolly derived from the noun form with the O. I'm particularly fond of using capital (with an A) to mean first rate, excellent, top shelf, etc.
Thus, Storrs is definitely the capitol of the basketball world because they play really capital basketball there.