dvon1981,
I am in the same position you are. I feel I also need a road bike after I bought my Trek 7.2 FX just 4 months ago. I added bar ends for the same reason you stated. That helped but still didn't "scratch my itch". I to toyed with changing bars, components etc... but it seemed to be more trouble than it was worth.
I say go buy yourself a road bike. That's what I am going to do. After riding the Trek Pilot (which felt the same as my FX) I decided on a Trek 2.1. I pick it up next week. Buy the best components you can afford so you "out grow" this one too. You might just want to keep the Sirrus, it is a nice bike and you might like to have it around for casual rides.
Either way have fun.
Joe