Best thing to do is to call around. Colorado Compressed Gasses are really cool people and 9 times out of 10 will beat air gas (which I will avoid at all cost). General air and US Welding is a few more to check out.
How much oxygen did you introduce into your wort before pitching?
If you ordered your Wyeast from Northern Brewer and live a far distance away from their store, it could have killed most of the yeast during shipment. If I order kits from online stores I will opt out of buying the yeast and pick...
Awesome, One thing that might happen with clear and cobalt bottles if you let sit in the sun too long it might skunk on you, unless you are looking for that flavor. Some florescent lighting will also alter the flavor of your beer.
Cheers!