Tim,

I am a Trainer for Dell Tech support.

The Mobile Workstations should not have a problem with cooling, they are designed as desktop replacement systems and are Dell's highest end portable computers. I use one (an older model than the one you ask about) and it handles Vue 6 Pro just fine. The downside is it won't run very long on a battery.

The M6300 is still a currently shipping system, and does have a 17" display. And the nice thing with Dell, the warranty transfers with the new owner, and Mobile Workstations come standard with a 3 year warranty, however when ordered, the customer can specify a shorter or longer warranty. But it is at least on site service for the MWs.

If you can get the service tag for the system (on the UPC tag on the botthom), you can go to support.dell.com and look up the warranty and what all the system came with. If the deal does go through, you need to go to support.dell.com, click on customer service, and then ownership transfer before you need support for the system.

If you have any other questions, fell free to PM me and I can look the system up and give you more info if you need it.