The 800D even without case mods is a beauty. And it can look even better if someone knows pretty basic knowledge of cutting metal and fiberglass. Quick paint job can make it look 3x better than any oversize flashy thing alienware has.
And if you are in to oversize flashy things, the Asus Vento (3600 I think) can do the job, and with a quick coat of paint you can make it look even better.