Uh oh, I didn't mean for this to turn into a flamewar or anything. I just remembered the OP's name and thought I'd comment about that incident. It may not be representative of how he normally behaves on servers
Anyway, to stay somewhat on topic I completely agree with Rdcranno. Analyze For Speed seems just the tool for you, though you will want to download a WR lap or some other lap from a fast guy to really compare your laps with. Just comparing your own laps won't get you much further.
Haven't used it myself so this is as far as my advice goes.