Re: crazy computer build idea
Getting a system like that for gaming would be silly - you'd notice next to no different since most games these days just about scale over 2 cores. Give it 24 and chances are 22 of those cores aren't going to be doing a damn thing.
There may be exceptions, but that's the general gist of things.
There are however applications where that sort of power would be useful - we've got some similar production machines at work (not quite that powerful, but in the same kind of ball park.) Heavily used servers are the most common candidates - very easily scalable (one thread of execution can be used per request.) Chances are you'll always have more than 24 people hitting this server for what we're using it for so it'll pretty much always be maxed out.
The more home based use would be DVD / Blu-ray encoding. Find an encoding program that scales well enough and it'd rip through a DVD in no time at all!
Save the whales, feed the hungry, free the mallocs.