I have received several letters from readers asking me to lay out a complete system of hardware and software that will put them on the construction computer "fast track." While I'm happy to give my opinion, I want to begin with a few cautions. First, no two contractors run their businesses the same way. You and I may both be successful framing contractors in the same town, bidding on typical jobs to a typical market, but odds are we run our businesses in completely different ways. I'm talking about the way we do our bids, keep our books, or handle our payroll. It follows that what's good advice for one of us may not be so good for the