[Sorry Foxy if any advice below has been offered prior. This post took longer than expected. The site was running really slow so it took ages to find the 2 linkis I included below. Cheers]
Hi there Foxy,
So many things that you could use! Great suggestions above. Only things that I can think of in adddition are...
a) Don't worry about your fermenter being larger than you need. Because carbon dioxide is being exhaled by the yeast, airspace above the level of your fermenting beer is not a worry i.e. you don't necessarily have to find an 11.5 container. Two bigger ones may even come in handy later on!
B) Definitely worry about how easy it is to clean the vessel you choose. If I was starting out at brewing, I'd definitely want a fermenter that I could easily reach inside of with my hand and a cloth. So, I'm sort of saying a water cooler bottle wouldn't be a good idea at this stage, (sorry Goat!)
c) A tap is almost compulsory. The only reason I use the taps on my fermenters is for hydrometer readings. Everything else I syphon. But I don't think it's a good idea to take the lid off something to take hydrometer readings.
d) If you don't want to or are not going to play with your fermenter then don't worry about airlocks too much. I'm a very clean brewer but I don't use an O-ring in the lid of my fermenters anymore. (I'll get crucified for saying that!) And I don't use an airlock. My fermenters though are in contained spaces and I don't play with them. I also have a spray bottle of no-rinse sanitiser that I spray around the lid from time to time.
Good idea to play around though Foxy. First thing I'd do is use Coopers kits as they probably have the highest turnover and are therefore the freshest. The other thing is that if you get a 'sour bight' to your beer, it's not you, it's the kit and it's very common! If it is there, you'll taste it even before you pitch the yeast. If you do get that taste, don't worry, there are ways around it. Just let the forum know if you are having any bitter or sour tastes.
Finally, have just seen it's your sixth post and you have just joined - welcome Foxy! There's two links I'll give you that no one ever finds until after they've been on the forum for months. They are a huge help and I wish I'd known about these...
Outline To Using The Ahb Website
Frequently Asked Questions For The New Brewer
My posts to AHB are always way too long but I hope you find at least some of the above helpful.
PP
EDIT: 2nd Link now working.