Peter Steinberg is lecturing at a summer school in Florida, and has posted the slides for the three lectures he gave about recent work at the Relativistic Heavy Ion Collider on Long Island. The first lecture is linked from that post, and the other two are available (at the moment) from links on the sidebar.
These are gigantic PDF files– the first one especially, which clocks in at 32.4 MB– but the first lecture is a very nice introduction to the physics they’re exploring at RHIC. I haven’t looked at the other two yet, but if they’re as good as the first, they’ll be worth the long download.