Lou,
I would second Mike's recommendation, Tall Grass is very good. Although it lacks the natural terrain, shaped by years of errosion, that RC has, it has some real out of the box thinking on how to recontour a completely flat site; the ridge line concepts are to me, quite original. You'll also recognize many of the features that make RC such a puzzle at TG. The hole length makeup, with some short par 3's and 4's, make large scoring differentials, depending on how aggresively you play, very possible.