PC Torque (host of this message board) began taking preorders tonight for the Sager 9750. This is basically the same machine as the m7700 with AMD 64 procs. The fastest cpus are the 2.4ghz, the x2 4800+ and the 4000+ (single core). It of course includes the 7800 GTX.
I checked Alienware's page and while thier ship dates are still vague, Luke of PCT says shipping 12/28. This is a date you can count on, so I would expect that AW will have thier new laptop shipping also about this time. I'd expect a web page update in the next couple of days.