Freezer
A little advise that I have is DO NOT GO CHEAP on waders. Get the best pair you can afford and go cheap on the coat etc. if necessary.
I am a big believer in insulated and tough waders. The kind I wear, to be honest I don't think they make them anymore. They are from Cabelas and called "Ice Busters". I have had two pairs and love them. I bought my last pair at during an inventory liquidation sale, a few years ago and have not seen them since.
I have also had good success with "Brush Busters" which are basically the same wader with a smaller boot. As far as pattern, I just go with brown camo. I never worry about patterns, just blending in. Heck I usually hunt in a brown plaid shirt and typical don't scare to many away.
I hate neoprene waders and will never buy a pair, so I recommend staying a way from them. No specific reason, just personal preference. With this said, my hunting buddy loves them and is on his second pair.
Good luck.