Well they look good to me, nice work. I'm still getting my head wrapped around what I want to do, so it will be a while before I get a system like that going.
1) There is nothing wrong with aluminum. You can use a seasoned aluminum pot as your kettle. I do it all of the time.
2) It will still taste like beer, but your hop profile will not taste quite right. The longer you boil the more you pull bitterness out of the hops.
If you used extract and then mixed it with water, your og is probably closer to 1068. Even with a boil over, unless it was absolutely massive, you should be right up there.
When you take your gravity readings are you degassing the beer? If there are co2 bubbles it can throw off your readings...
I would know what you are talking about if you said froth, you could also call it foam. My circle of friends call it head though.
Edit: Well that's funny, I missed it by that much, go Queen City I guess.
My major goal is to clean out my basement and set up my brewery down there.
To do this I need to put together a natural gas brew stand.
Clean out all the crap that is down there at the moment.
Make the transition to all grain so I'll know what I want in my brew stand.
From all that I have read you should be fine with that set up. Direct sunlight, and fluorescent bulbs are the ones to worry about.
If you are still worried about it, just cover your carboys with a t-shirt.
At my regular bar normal prices for imports like Guiness or Fullers go for $5.60 to $6.20, but that is for a 20oz pint. They have also have a rotating Brewdog cask which is pretty sweet, but anything over 6% abv is only served in 10oz portions.
It can be annoying when they don't serve you a...