If anyone else is looking for a M1710, you should check out this seller at Ebay, it's where I got mine from, at the time I bought my system, back in September, with taxes, I saved $1,200 off of what it would've costed me buying one from Dell.
Check out this current auction from the same guy -
http://cgi.ebay.com/Dell-XPS-M1710-T...QQcmdZViewItem
Pay close attention to the specs and configure that over at Dell's website, I just did and the total of that was $4,931 (that's without tax or shipping) !! He's selling it for $3,695 with $35 shipping !!
He also sells a couple of lower M1710s without the Blu-Ray, which are great deals. His feedback is perfect 100% without a single negative and 1853 points.
If you're gonna buy a Dell, definately consider this guy and save a LOT of money.
Here it is without the Blu-Ray $2,995 !!
http://cgi.ebay.com/DELL-XPS-M1710-T...QQcmdZViewItem