Every time I buy a PC I suffer from buyer's remorse. Not because I buy the wrong thing, but because a new smaller, faster, meaner, cooler, and cheaper model hits the shelves a week after I make the purchase.Now I am a techie and I know what I am buying. But if you are not a techie, deciding which PC to buy for your business and when to buy it can be an excruciatingly difficult process. So I'll give you a few pointers on what to look for in a new business desktop.