For what you are looking for I would suggest a 1600 or 1866 RAM kit. There are a couple reasons.
1. OC'd RAM is not noticeable in performance, and only gives a less than 5% increase in synthetic benchmarks.
2. Although the higher speed kits are designed to have headroom to work up to that speed, you will have to OC both your CPU and RAM to get it to that speed in most cases.
Basically, unless you are attempting to beat world records, and are experienced in OCing I would stick with a tighter 1600 or 1866 kit, spend the extra money to bump yourself to a 16GB kit, or use the extra money elsewhere.
As far as the brand goes, G-Skill is very solid, as are Corsair and Kingston.