Ugh!!! I have to roll my eyes at your LBS. While I agree that it takes a bit of time to get used to a road bike, it's not THAT big of a transition. Maybe I'm too quick to assume it's a function of male chauvenism, but I find it hard to believe that they'd take the same attitude with a man.
So, if you think you'd like a road bike, then I'd either find a new shop or tell your current shop that you're really not interested in buying a hybrid, thank you very much. Then just start looking at what's available. Determine your budget, concentrate on getting a good fit and have fun with the process. Test ride as many as you can; some will feel and handle better than others. And don't worry if you can't afford a top-of-the-line bike. There are plenty of entry level bikes that will serve your needs well and allow you to economically determine whether road riding is your thing. Especially in the coming months, you might be able to snag a good deal on a 2007 model.
I'll share my own story for what's its worth (and for you regulars, I know I'm repeating myself). I bought a Trek FX in June of 2006, unsure of whether I'd enjoy cycling as an adult, even though I loved it as a kid. The FX is a hybrid of sorts, with flat bars but no supsension. Well, I took to biking immediately and quickly realized that I should have just gotten a road bike. Within about six weeks, I bought my beautiful Bianchi road bike. I haven't ridden the Trek since, but the Bianchi now has about 5300 miles on her. Was there a transition period between the two bikes? Sure. Was it totally worth it? Absolutely.
Good luck; keep us posted as to what you buy.
Live with intention. Walk to the edge. Listen hard. Practice wellness. Play with abandon. Laugh. Choose with no regret. Continue to learn. Appreciate your friends. Do what you love. Live as if this is all there is.
--Mary Anne Radmacher