I'm working on some spanning tree labs, which will require some real gear. I'll try to keep them to features only requiring a 3550, but I do have some PVLAN labs I want to work out. I've been taking some time off from studies to focus on "real" life. However... I still have the itch lol. I'll try to have the first STP lab out by this weekend with video solution shortly after.
Edit: Also my MPLS labs seem to get the most attention, hint taken. I'll work up some more magic.