Some of you asked me to post my impressions with my new pc so here they are!

Spec: Core 2 Quad Q6600, Nvidia8600GT, 8 Gig RAM, 2 x 320 Gig HD's in Raid 1 array, Vista Ultimate 64

Vista: Lots of bells and whistles you prolly don't need, eats RAM, typically 1 Gig but has gone up to 1.6 Gig with some background stuff working. 
Turned a few things off that I don't need like the side bar and the "nag" screen! Also some tablet stuff that I won't ever use, so generally you're looking at 1 Gig for Vista out of your total RAM!
Generally Vista seems quite stable although there have been instances of it "thinking" a bit too long before doing something, a minor inconveniance though, nothing more!
My old Vue files with Poser content refuse to load without manually assigning the textures, I think it's down to Vista's new folder set up, again more an inconveniance than a big problem!
Old Vue files without Poser content work fine!

Vue 6.5: Well what can I say, super fast, super stable, a couple of very small issues but nothing great!
Using the Gizmo to rotate and move the camera is jerky and imprecise, this is prolly a driver issue though and yes I have the latest driver, again it's not a biggie and will hopefully be sorted with a driver update!
Render times are fast!
Now comes the bit I know some of you are waiting for, Poser imports!
I posted an image last night using V4.1, Miki2 and the SS Magellan space ship. One of the  two females had clothes on, both had Hi-Quality skin shaders and as Poser users know the SS Magellan is a beast of a model, very large and complex!
Imported said scene with use  "Poser shader Tree" ticked!
Now normally as most of you know, a scene like this would bring it to it's knees, the good news is it didn't!
These are the figures: Imported scene with full HQ shaders, resources at 82%, rotated cameras, added lights, moved a few things etc. as you do to set it up, resources dropped slightly to 77%, at no point did resources drop below 75%, Result!!!!

Overall: Ok it's very early days, less than a week of playing, only 4 days in fact, but initial findings are positive and at the moment I'm happy with the set up, I need to to tweak some of the more superfluous Vista bits but these things take time!
Anyway I hope that's given those of you that asked some food for thought!
As ever these are just "my" impressions, others may have different views or experiences or have set Vista up better than I have, it will take considerably longer than 4 days to get used to the new OS!

Injustice will be avenged.
Cofiwch Dryweryn.