Thanks for the great advice Lightspeed! I am somewhat familiar with the South Dakota part of the area as I grew up in a little town called Eagle Butte in the middle of South Dakota. If I visit my Mom on the route I'll have the misfortune of taking Hwy 212 across to Sturgis which is a very boring road - but they all are in that area. Actually though, I'm looking forward to seeing it from a bicycle perspective - it might be quite lovely. What I will likely do instead is go west from my sister's house in Fort Pierre so I can go through the Bad Lands and Wall Drug! They have free ice water you know.
This trip will be a great challenge for me as I have never ridden on anything steeper than a drawbridge here in Florida. I'm hoping that by the time I get to the good climbs I'll have worked up enough strength and endurance on the first part of the ride. Depending on time available, I may need to take the "wussy" routes as much as possible. I'm also a little concerned about elevation and breathing as well. Anyone have tips on preparing for elevation?
Let me just close this post by saying I am VERY MUCH enjoying the blog from the original posters schultzbike above. I'm reading it all the way through - I'm up to Miss Zula right now. I plan to do a blog like that on my trip as well but theirs is well done - and what a nice handsome couple.

;p
Happy biking all! - Dennis
PS - the Sturgis Bike Rally is an amazing event that I've never been to - I almost wish I would be there for it but I'll be through the area much earlier.