The tour at Red Hook Brewery is more than just fun, it is also a great deal. You get to try 5 different types of Red Hook brews out of mini-glasses (probably about 8 oz), and you get a free glass. When I went, they were out of the mini-glasses, so they just threw in a pint glass for free. It looked liked the price of the tour varied depending on the day, but when I went it was only $1. Well worth the money.
I've been to the bar/restaurant in the past, and it was good as well. The prices there aren't spectacular, but they aren't unreasonable either. The appetizers are good.