I just recently purchased the black CTX1300 non-deluxe version. The weight was something to get used to. I was riding a 1983 Suzuki GR650. I love this bike. I live in Washington State, with lots of curvy mountain roads. It's a blast to ride.
The weight just seems to disappear after a while. In less than a week I found the CTX easier to handle than I did my 450-lb Bonneville. Not enough good things can be said about how low the center of gravity is on this bike!!!
As for the weight, the CTX really carries it better than most others of the same or similar weight. You're bound to notice to the coming from a 650, but you'll get used to it in no time. Congrats on the purchase, and may I add that you picked a fine color.