They are excelent for the price, depending on how much you plan on oc'n you might want to try some micro d9's or those black GSkill thats 5-5-3-4 seem to be the best promo ic's around thier 119$ at new egg.
but if you get a good pair of the ram you posted, you should be able to do 4-4-4-12 1000mhz.. but thats in the luck of the draw.. you might get ones that can only do 5-5-5-15 at high clocks.
I just bought new ram and I think I got quite a nice pair.. I got lucky they are oc'n very well with tight timmings little volts fort the voltage the can handle.