Seriously?  Hawaii is the come stay here capital of the US.  There are thousands and thousands of places to stay.  We have a page with some helpful links.Whether to stay in Honolulu, where there are lots of hotels and services, or over in the Kaneohe/Kailua side of things, which is closer to Kaneohe Yacht Club but pretty much compels a house rental, is purely a matter of choice.

All boats should be prepared to anchor.  This may arise from an in-race emergency, of course, or a surprise of sorts at Kaneohe, such as heavy weather or a dock failure.  Boats over a certain size will almost assuredly need to anchor out to avoid overstressing the pilings at Kaneohe.  KYC provides a volunteer shore boat service to these racers!

Well, all the events at Kaneohe Yacht Club.  But if you have more time, may we suggest, at least on the island of Oahu, a biased list, not necessarily in order:

There is a channel through the reef.  If you can sail straight, you can sail straight through it, if you draw seven feet or less.  Once through (and it is kind of scary after all that open water) you get a fabulous reach through Kaneohe Bay. Yeah, sail if you can.