Indeed, go spend some money on a road bike.
Then more money on an Heart Rate Montior.
Then get a wattage power tap wheel thing to measure that.
THen HIre a coach that you pay alot of money each month.
WIN a couple of local races.
Then decide your burnt out on it and stop racing all together.
You dont really need a road bike, you can get one if you want one, but you dont NEED one.
Its fun to go fast on a road bike, but, there are plenty of fast people out there, that dont even own one.
Im a big believer in ride what you race.
BUT, commuting helps, believe it or not, just more miles on the bike helps a ton.