To be honest, I had this same dellima about 2 weeks ago. I was leaning towards the 9880 because of the TV Tuner, Camera, Microphone, 5.1 speaker setup, and RAID. However after reading through the Sager section, I started getting worried as I read several threads regarding the units frying or components failing to work. It's got a lot of high heat levels being generated from the P4 and GeForce6800Ultra, so to be honest, I was sadly not suprised of the problem they are encountering. At the time, both units would have cost about the same, so price was not the swaying factor. I still wonder if I would have gotten a rock solid Sager 9880 if I had went with them. But the thing that finally made me decide to go with another XPS2 was the dead pixel policy that Clevo/Sager enforces. They state that 90% of the screens have 1 or less dead pixels. That's not good enough for me when shelling out $2500 on a laptop. They do offer the 0-dead pixel option for $200, but why should I pay extra?
In the end, since I do alot of gaming, I think I made the right choice. Since I have been told the keyboard gets very hot on the 9880 during gaming.
However, I still wonder if I made the right choice since the Sager does offer a lot more for the same money. Who knows, I may still return the XPS2 and go for the 9880.