I'll echo the suggestions already made, and also add the newer FFP Sightron SIII 6-24x50 to consider too.
My overall pick would be the SS, you won't do better for its price. The Bushnell DMR is it's main competitor and a fine scope as well. The PST and SIII are a little cheaper and both great scopes with the edge in glass to the SIII.
Burris is releasing some new FFP scopes that should be competitive in the $1000 price point.