Reply to Building a desktop for production

Anyone have any insight as to what processors/components would be best for production? I know the more RAM and processing power the better but I have no experience in creating my own desktop. I feel like I could get more out of my money if I build it myself, though. My budget would be around $600. I've used earlier versions of Fruity Loops so I would probably stick with it. My laptop isn't cut out for the newest FL studio though and I know FL is only for windows so a mac is out of the question.