Perhaps a relevant follow up question (like many good questions) is what are you using it for? Is weight an issue? What kind of height (or lack thereof do you need)? Also, how heavy is the scope? If you're talking about mounting something like a 2lb vortex razor on a 5.5lb 30-06, you'll need some serious rings. Otherwise, you may not need that kind of overkill.
I've also had very good luck with Seekins/Vortex PMR, and the lack of a protruding cross bolt is also very smooth. Tactical Precision Systems (TPS) are also nice, especially if you're looking to mount low. Leupold Mark 4's are always great, and then there's nightforce, but I'm still not sure they're worth it. I have yet to reach up to Spuhr-level rings, so I can't speak to that.
Watch the classified here. I've gotten some good deals on seconds (as long as they haven't been lapped) and I usually haven't had to wait too long.