Is there a better dx format to replace the D300 right now?

The D7000 has a seriously deficient buffer for action series like wildlife, it's almost not usable. If the D800 buffer can equal the D300's (I don't know if it can) then why not use this in DX mode?

I'm waiting for the D400, praying that it's just a D300 with 16 mp DX sensor with pumped up high ISO capability, faster FPS, even bigger buffer, and of course good video. Add those things for a reasonable price and I'm sold. Seriously, what more do you need? What else could Nikon add that wouldn't cut into D4 and D800 sales?

I have no use for a D800, why do I need that many pixels?
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Nikon D300
Nikon D7000
Nikon D40x
Nikon D40
Nikkor 70-300 VR
Nikkor 300 F/4 AF-S
Nikkor 70-200 F/2.8 VRII
Nikkor 1.4X TC
Nikkor 2.0X TC Version III
Nikkor 18-55 kit lens
Nikkor 18-105 kit lens
Nikkor 35 f/1.8
Sigma 10-20 older version
Canon 500D close up filter
Nikon SB 600 flash
Canon HF10 camcorder
Canon HF200 camcorder
Canon WP-V2 underwater housing for HF200
Three GoPro HD Hero video cameras

Okay, too much stuff, yes I know I need to whittle it down a bit.