Hey Dom, you'll have to give me a ring when you're up around these parts, I'd be happy to show you around some of the courses up here. If you're on a "just for kicks" kind of road trip and aren't too concerned with reaching a certain destination by a certain time, I'd highly recommend stopping by The Inn at Lucky Mud.
Really good people there, an awesome course that you'd probably have to yourself, and some gorgeous PNW scenery (some of the ferns there come up to my shoulders!). I think it's about an hour off of I-5.
Also, just a heads up, I've heard that the Whistler course either got taken out or got seriously shortened--I think maybe 9 holes got pulled and integrated into the remaining 9, effectively halving the course. I haven't had the opportunity to play it, so can't comment, but that's what someone was telling me. I've heard there are some good courses on Vancouver Island, though, esp. on Pender Island. Just something to consider.