Nick-
I visited Monterey for the first time in the summer of '03 and was not prepared. No matter how many photos or info you have gotten there is no way to be ready for what is really out there. Here are some impressions I had.
Cypress Point & Pasatiempo- Marvel in the bunkering and the great routing. At CP, AM utilizes two dunes on the property for a number of holes and one never feels repetition. One dune supports the 1st green, 2nd tee, 13th green and 14th tee, while as Clayman said there is some intimacy in the north corner (another dune), 6th green, 7th-10th tee, 11th green - 13th tee. This same approach is used at Pasatiempo but with a barranca instead. Many ravines run through Pasa and there used rather well through the second nine. There's the carry and left on 10, division of 11 & 12, left on 13, cross on 15,16 and 18. One barranca even "runs out" across 14 fairway. Biggest surprises of each CP- the whole experience, hole #4; Pasa- the speed they have the greens for the amount of contour, how long the course plays.
Pebble- The routing also amazed me, but I was disappointed at the number of distractions one has while playing, i.e. the roads, traffic, pedestrians, gawkers, etc. The 8th is great but I was surprised by how little the fanfare is for the 14th green. That thing is awesome. One distraction I had was how there seemed to be chipping areas around some greens that just felt out of place. Wish I could remember the holes but there were a few that just didn't jibe with me.
Spy-Wasn't really impressed except by the "Blind Pew" hole, #4 I think. A green tucked into a dune below the fairway and skinny as a rail. There were some other good holes but this is my first impression. I also remember some bunkering wrapped around a tree that actually looked cool.
You'll have a great time. Please post some pix so we can enjoy the views that are constantly haughting my dreams.