Some ideas for cases here
www.pccasegear.com
Also if you are going to go over the top and want maximum distraction from the moniter you could go all out and get UV lights in a clear case:

intresting if nothing else
another thing, watercooled computers are great especially with a clear UV case as the water itself can have UV dies added to it so it too glows. Look pretty good but personally i would rather spend my money "under the bonnet" instead of the case, but that is up to you.