Stoots,
If you haven't already purchased your gun, you might want to look in the classifieds. I noticed a super blackhawk "hunter" for sale. This will allow you to mount a scope directly to the barrel lug simply by using the Ruger rings. No need for a base, and it will eliminate the need to remove the rear sight. It will also make it much easier to remove the scope and go back to the iron sights should you choose. If I were in the market for a super blackhawk, this is the way I would go.
I would also highly recommend the Burris Zee rings, with the pos-align inserts. Although I am not positive thay make them for the Rugers. I just moved a scope from my .44 mag Anaconda to my 7-30 Waters Contender barrel. Haven't had a chance to shoot the Contender, due to all this snow, so I can't give a first hand report on how they perform just yet. However, when I had the scope mounted on the Anaconda I did have a little bit of a problem. Had to shim the scope to get it on target, and even then had to use up all the vertical adjustment to get it on target. The pos-align inserts should make this less of an issue. Plus they just "seem" to hold the scope more securely. Lastly they eliminate the need to lap the rings.
Welcome to the board and best of luck with your .44.