It's not overkill if you're a developer and need that kind of power, speed and storage... Hence the "Pro" tag...it is for professional users... Sure anyone can get one, but most people aren't going to be spending that kind of dough on a workstation...
Also, the regular configuration is much more reasonably priced, at $2499 USD...
http://store.apple.com/1-800-MY-APPL...00&nclm=MacPro
You can configure it with all the goodies for about $16885 without software...lol Who needs 4 500 GB hardrives?? lol
Either way, an amazing machine...
