Mental has posted some good ideas!
My personal experience was that the liquid nolvadex didn't work nearly as well as the tabs. I've not tried Kaotic's product, but the times I've tried the liquid, it's just not worked well.
With the tabs, 20 mgs twice each day should be plenty. The Arimidex and other aromatase inhibitors will reduce estrogen production, Nolvadex is more specific for breast tissue. Breast cancer patients often use both as Mental has suggested.