If I listed all of the cool things I've gotten off Freecycle it would take me half a day to remember them all.
Highlights: Two pinball machines, a Tank II, so many PCs and game consoles, patio furniture, a whole car full of electronics repair equipment, presentation monitors, 55" and 60" WEGA HD RPTVs, several Tivos and DirecTV receivers, networking equpment, a gorgeous 1950s Delta tablesaw. There is a ton more that just isn't coming to me right now because this is over the last 7 years.
Of course, I've given away a lot of stuff that had some decent value too. Gotta give back and a lot of times I give back stuff I have received because I only use it for a little while.