mac pro laptops should upgrade to the new intel Ix chips SOON
the old core2dual chips are so 15 minutes ago now
these newer Ix chips will be much faster esp on complex programs
but why do you want a laptop for 3d programs
laptop tend to be slower and have less video then a desk top
less hd space and less memory too in short way less speed and room then a desktop
and at a higher price with less up grade options
I would build a i7 gigabyte motherboard desktop and haskintosh it
link to hackintosh page
InsanelyMac Forum -> OSx86 10.6 (Snow Leopard)
that way you get a new chiped box for about 1/3 to 1/2 the cost of a mac
but can run both mac 10.6 and windoz 7 FAST
best way to save info on a hard drive is pull it out and save it in a portable usb/e-sata or firewire connection box for your use
reinstall a blank hd in the computer to be sold and reload the O/S