SUNPAK RD2000 External Flash Unit
Been looking for a small flash for a while, cheap alternative to the Nikon SB-400.
Seems like a good buy at $49.95. I can't find it cheaper on the usual sites, surprised me that Ted's had it significantly cheaper.
I've ordered one, but make sure you specify that you want nikon or canon version, as the TTL system is different.
Similar in size and weight to SB-400 (needed a lightweight external flash unit)
Specifications from Sunpak site can be found here
http://sunpak.jp/english/products/rd2000/index.html
Don't know what the new sunpaks are like but my 16 year old hammer Sunpak still works great albeit full manual .