Just bought the 5296D for $4169 at FS downtown. To be fair, I had to throw in the darn Monster Power Bar for $180, total came to $4350 for the 5296D and the power bar.
My thinking was that the glossy black Sony XBR is retailing for $6200 now, and reading off the crazy AVForum, it seems that for the most part the performance is very similar.
Looking forward to getting the TV! The store had the 46" on display right next to the 46" Bravia XBR2 and I couldn't tell the difference (both were fed off Blu-Ray sources though...)