I work with computers all day long and have built computers for many years...and I can honestly say that I have taken no steps whatsoever to protect against static electricity other than touching something metal before I start working and touching some part of the case itself.
With respect to cases, there are a ton of cases out there. Budget is likely the biggest determining factor to what you get. Cases can range from $20 to $800...with many cases between $100 and $300. I look for something that has room to work in it, is a tool free design and something that provides AIR FILTERS to keep the dust and dirt from getting inside of the computer all over the fans and leading to overheating and cooling issues down the road. Personally, I have used Antec cases in the past (Sonata II's, P182, 300's) and have been happy with all of them.