Well for some reason the big Rock Xtreme64 decided to go into thrash the hard disc mode under 64bit Vista. I suspect it was down to an interaction between some MS beta software and windows update. So I decided to reboot in XP grab the stuff from the Vista partition I needed and reformat.
The Rock xtreme64 is based on a D900K chassis and makes a nice (if heavy) Vista laptop and by now most of the driver issues have been sorted out (last week the webcam finally appeared on windows update). There are a few things you will need drivers for which windows update won't find:
D90K_MSBT_X64 Bluetooth driver
D90K_MS6833B_X64 Wireless network card
D90K_AP-KEY_X64 AP keyboard driver
I have decided to host these (click here to download) as I no longer remember which manufacturers website I found them on and at least this way they're stored offsite if I need them. Also I downloaded the latest mouse pad driver from synaptics. Since they are 64 bit drivers they should be signed and I would recommend you check them if you download them from here. You'll need the wireless driver as at some point Vistas problem resolution system says that there won't be a driver for the network card.
The gentoo wiki says that this model has also been branded as an alienware Aurora M7700, Sager 9750 (or NP9750) VoodoPC Envy u:709 and various other names incorporating D900K
This of course was followed by the obligatory full day reinstalling various bits of software getting all the updates etc but this time I remembered to install a second mixed mode authentication instance of MS SQL server 2005 before I applied the service pack (an older app I work with requires this).
One final thought I don't run a lot of games on this machine so I use the out of box GeForce Go 7800 driver which you have to hand select from the driver browse dialogs in Vista using the "show me all the drivers" check box. You may want to get an updated laptop driver from http://www.laptopvideo2go.com/ if you do.