a quick search here for "storing buds" brought up everything you need to know...and then some.

http://boards.cannabis.com/search.php?searchid=492652

and freezing is not good. instead, store in air-tight glass jars in a cool and dark spot...like the fridge. freezing bursts the cell membranes and that'll cause rapid deterioration when it's thawed. plastic is ok for short-term but not good for long as all plastic leaks air to some degree.