Quick question, I'm looking into getting a notebook (no, i'm serious this time! I have money!

)
How is the 256mb NVidia GeForce 8600M GT? What will it run? DX10?
Okay so I'm gonna get a Dell because the only major thing that ever stopped me from getting one before is because they aren't entirely upgradeable, but its a notebook so thats a given.
There is
this or
this. of course I would go ahead and upgrade RAM, CPU and (maybe) the HDD but those look pretty nice to me. I've never had my own computer before. Which would you guys go for (neither? :O)