Two years ago, I detailed how to build a Hackintosh for under $800—then covered how to do the same with less hacking. Now that Snow Leopard's out, we're revisiting the Hackintosh, building a Hack Pro from scratch for roughly $900. For folks eager to try a Mac but never wanted to plunk down the high price tag to get it, the Hackintosh—that is, a regular PC tweaked to run OS X—has always been an att