Because of that, his instructions get a little technical (he actually replaced the innards rather than just trying to fit a Mac mini in there or something similarly easy). So this isn't a very good project for a first-timer for sure. But if you've got a little DIY experience, or just want to see what it looks like to take apart an old Mac and refill it with modern PC parts
(he went Hackintosh on the OS), you should definitely check out his writeup. I wouldn't use the computer as a workstation any more -- because, come on now, who can really do any serious computing on a 9-inch screen?
-- but as a music server or just a conversation piece, it's great.