The quartzite is slick, very. I've climbed at both, not extensively, but I think Blue Mounds is a bit slicker. Some leads, some TR only.
Cams are probably not the best protection, especially at BM, maybe better at Devils Lake. The cracks are great for stoppers & hexes, bring them along.
There is limestone sport in Iowa (haven't been there personally), Southern WI and MN, basalt north of the Twin Cities, and some really great climbing on the North Shore too.
The Minnesota Climbers Association has gatherings at MN crags, Blue Mounds is the Oct 5-7 weekend. You can meet a lot of climbers and get on a bunch of ropes.http://www.facebook.com/events/108985389252549/
Welcome to the midwest.