Capon is a good choice, but the process of caponizing can be dangerous and if you make the slightest miss, can kill the bird. I prefer to use a heritage chicken such as the Buckeye, which because they're slower growing and most people raise them out of doors, have tons more flavor than a commercial chicken. Finding a breeder of heritage breeds of chickens is easier than you'd think, just try www.localharvest.org for a poultry farmer near you.