Alienware for sure.
But not only is money an issue, but you can build just as good of a computer for MUCH CHEAPER than the prices Alienware and other competitors such as Voodoo offer, so they are pretty much custom PC's with "fany cases" that make them look attractive.
I dont understand that.......why would you want a cool case anyways? It's not like anyone is gonna be staring at it or anything.......