For the kind of versatility you seem to need, I'd go with a variable. For hunting it is quite helpful to be able to use a lower magnification. For tactical training, etc, Super Sniper is the way to go.
Some other alternatives:
In a similar price range you can look at Sightron S2 scopes which are avilable in a 3-12x42 and 4-16x42 configurations with Mil-Dots. 4-16x42 is a bit more expensive, but if you look around you can often find good deals.
Burris Fullfield II 4.5-14x42 with Ballistic Plex is a good choice if you can live without a Mil-Dot reticle.
Another scope that is excellent for the money and has a Mil-Dot is Mueller Tac II 3-10x44 would have to be up there as well. I recently saw one and I was impressed. It is certainly a step up from other Mueller scopes and is right in your price range. I think it has better glass that Buckmaster and Fullfield II, although I have not yet looked at them side by side (although I plan to).
That's all that comes to mind off the top of my head. There may be others that I am missing, and if you are willing to spend a little more there will be more choices. To be honest though I think any of these scopes would work very well for you.