Its been possible for quite a while, but kind of a niche market because of the price. I really do not know of a site to buy the parts at, but if someone could post one, I would be able to take a look and give some recommendations.
I want to use this processor: Intel Core i5-750 2.66GHz
http://www.techbargains.com/news_displayItem.cfm/200745
I think this one is just for desktops; I thought I saw something a few days ago about one for a laptop..
http://www.amazon.com/MSI-MS-1432-1...1?ie=UTF8&s=electronics&qid=1268543947&sr=8-1
And then something like that as far as the case for the laptop, screen, etc. goes..
Most of the barebones laptops come with processors already in them.. I hope theres a way I can buy them separately to save a couple bucks
For a 'site' that specifically sells the parts, its hard to locate one. I've just been googling and checking on ebay and amazon.
I have to go for now, I'm going to be checking in on this thread daily.
Keep it active people!! This will be useful for the entire community