BTW, I think the SCA adapter that fits most Nikons is the 3402 and for handlemounts you'll also need the 3000C cable.

And, if you're really wanting to get a good flash. And have about $600 to spend, the QFlash is the best you can get. But, you have to carry a battery pack all the time. The Sunpak 120J/120JTTL is great too, and allows you to use 4AA or the HV pack with it. I use the 120J, barebulb or on a monopod for fill during weddings...