The Colt Gold Cup is an excellent pistol.
The one thing I would recommend is that you make sure you like the sights. I find the all black sights are not as easy to acquire as a the Novak 3-dot white sights or the night sights.
I see the standard Kimber recommendation. While they make pretty guns, I don't think they quality is nearly as high as Colts. As I've said before, when you see Kimbers used, they often have surface rust on the barrel. I haven't seen that on Colts. Also, if you believe what you read on the Internet, Customer Service @ Kimber has a lot of people dissatisfied.
YMMV.