Dell Precision 470 Power Supply

Hello I own a Dell Precision 470 which I have been running for a long time as a FTP server. Power supply died and can't find a reasonably priced one online. If anybody can guide me to where I can buy a Dell Precision 470 Power supply that would be great, it has to at least 500w. 

You can search for a site that sell old parts from servers. I live in the Netherlands, and we have Serverhome.nl where you can buy serverparts or old servers.

And maybe you can search on ebay or something....

Yeh I found a few but the prices don't make any sense. I think I am better off just building a new computer then waste time and additional money. Sucks because the dell still has a lot of life left in it. Thanks Gamebase for the advice.