Get comfortable before anything else...! You'll ride more, and after you've done that, you'll want another bike to go faster with. Don't skimp on quality of either bike, and you'll be happy. For comfort, get yourself a '70s vintage sport-tourer with Reynolds 531 double-butted or Columbus SL tubes, a longish wheelbase, and 72-73 degree frame angles. For a racer, get any modern latest-greatest thing you want. Ride the sport-tourer until you're curious about going fast. My .02¢.