I've been looking this week for someone that has any of the Inuke6000DSP's in stock. It seems since they dropped the price to 399 they have been flying off the shelves. PE shows in stock date of mid to late August, depending on when you look.
I'm wanting to play with one for my upstairs/living room setup as well as experiment with rear/side subs in the theater. For the price these seem to be the amp to beat.
Edit - Just saw that amazon has some, but I would have to pay tax. I'm cheap.