as far as cooking oil YOU COULD just put an OZ of good ground-up bud in about 4-5 cups of cooking oil and store it in a cool dark place for a week. strain it out and your ready to use it to cook your favorite dish.(it's ok if it's green colored)most dishes will hide any taste left by the "plant matter" since you don't use heat in this method, very little vegtible waxes and oils are released from the bud, and the cooking oil should now have a very pleasant "hearty taste" and (depending on the potency of your bud) will be very potent.

ps. for REEEELY potent canna-oil try my recipe posted in the recipe forum