I play and browse the forums all the time at work LOL. I realize the IT department can track traffic, but meh. I work on a college campus, so high bandwidth traffic isn't exactly unusual. With the exception of porn sites and well-known illegal download sites, they're not going to care about forum browsing or short-term streaming traffic.

I am, however, able to prioritize things at work. I just tend to not have very much to do LOL.