Don't want to get into "what anchor is best" arguement. But, I agree a 22# any anchor is a little inadequate for a 39 foot boat. Like others have stated, find the anchor design that works best in your area - ask around the marina, etc. Add at least 39 ft of chain (another rule of thumb - chain the length of your boat) and you should be Ok for the majority of your needs. The biggest issue you might face are the exceptions to the rule. Those times when you have to anchor in less than desirable weather, in poor holding areas with limits on swing and close to other boats. Then, you'll wish you'd planned for those exceptions. It's a matter of your risk tolerance and how much sleep you're welling to concede. Good luck.
IMHO: Go with at least a 35# anchor (for your location) and 50 ft of chain. 200 ft of total rode is not excessive either.