Decarb weed in a oven at 225-245. If you need more info on decarbing then look around as there is plenty of threads on it.
One 16oz jar of coconut oil per 1oz bud.
If you are using for edibles then place in crockpot on low for 4-6hours (4 if its high quality, 6 if its lower). Strain the buds out and let cool till its hard or place it in whatever smaller jars you want. It will stay good for a few months in the fridge or a month in cool dark area of the house.
If you want a rub-able salve. Place same amount of coconut oil and flowers as above on low but for 6-12hours. Strain the buds out and place 2oz of bees wax and 2-4oz of raw shea butter. You can add any essential oils you want, i added peppermint and its smells like weedy peppermint deliciousness. You wont get high or buzzed of this but it does work miracles for arthritis and muscular pain. The anti-inflammatory aspects of this rub are unbelievable. You can read more
HERE . I used the recipe subbie posted, she has a wealth of knowledge on the stuff.