Tom,
A good example of a course which utilises the hill, well, in the overall context of design, is Gullane #1.
You play up the hill on Holes 1 and 2, then down it on 3.
Once again you climb on 5 and 6 before falling once again on 7. (A View of Muirfield can be seen from this tee)
The next time you start climbing, the same hill, is on holes 13, 14, 15 and 16 before coming down the other side on 17 and 18.
With regards to design, the 2nd hole is a solid dog leg right to left played up hill between two large hills. The approach has a fantastic green formation, which I would show on this forum if I knew how to post them. If you want them, I can send them to you via email. (I'm sure there is a technical name for this) The small swales either side of the green are great catchment areas for the approach that will always be wind effected as the wind channels through the 2 hills!
15th hole is just wonderful. A par 5 on the reverse side of the same hill from the 2nd, meandering up the hill full of bunkers and strategic design. Everything in view and exciting to play.
These are just two of the many fine examples of uphill design at Gullane.