Need a new mummy bag for camping in cool-cold weather... mine is ripped, duct-taped, and has a fucked up zipper. what can you reccomend My Bushy God?

If money isn't a big problem I'd advise you to go with Kifaru Slick Bag http://kifaru.net/regulator.html .
It's very light and portable. It also has a lot of room in it so you can wiggle around and keep things in it that you want to keep warm. You can also sleep in it with your boots on.
It's water resistant, not waterproof, if it was you would be sweating like a piggy, and having moisture freeze on your body at night is not very pleasant.
Comes with lifetime warranty.
Compression sack needs to be purchased separately, which would add another $40, or you can improvise with few pieces of string.

Hope that helps,
Seb