more on the d800 and m60...

After researching here and dell more, since Fuji is in no hurry to upgrade to a 755 or their video card, i have about settled on either the M60 or d800...as from what I have read they are pretty much the same.

I am correct in that the m69 and d800 chassis are the same..trimetal?

Is the bios in the d800 still crippled for the ram speed?

when I go to the customize m60, it shows to screen options and one has out beside it, exceptionally crisp, or some such...what does that mean? is it a diff screen than the 9100, xps, 8600 and so on? What is the difference?

Warranty...I would love the 4 yr completecare warrantyonsite that the home users has,...the m60 only has a 3 year...is it not possible to upgrade that to a 4 years?
Also, I assume the m60 3 year is same as the home users complete care, only 3 years instead of 4...right?
Ok, then, about the onsite part...I buy an m60, for small business and something happens and they come onsite to repair something and find out onsite is actually my home and not a business....what happens then? the warranty is not good, because it is not being used in a business?

The configuration I configured was about 3800 dollars prior to the discount...waaaay too much, after discount about 3000....i have read here about how many have gotten a very very good deal and saved a lot of money on it....other than being nice on the phone, is there any other things I should know or someone specific to talk to? would really love to get this under 2600 as state tax of 7% kills me, and I still have to upg the ram to 1gig from crucial...

ok...Yeah I am pretty much decided on one of these two dell's or a fuji, and now ready to order...but gotta get the price down...

Other than video card, is there a major diff between the d800 and m60? thanks all..t