Well, I finally found a decent (actually, a GREAT) LBS... anyone in A2, i'd definitely recommend Two Wheel Tango (NOT Great Lakes, who was very rude to me and actually gyped my cycling buddy out of her "team discount").
I brought my bike in and got a fitting done. While Great Lakes had told me that I'd need a shorter stem and it would cost $80 (after just taking a look at me wearing street clothes and shoes on my bike... no measurements), Two Wheel actually used an adjustable stem and a computer program to figure out that my frame size was fine (whew!) and I needed a longer stem ($40) with a higher rise and shallower handlebars (so i can ride in the drops and reach the brake levers). not bad for $50 (the parts and labor will cost about $120 total). And i had moved my seat forward to be more comfortable (closer to the bars), but in fact it needs to be as far back as it goes, so i can get more power in my pedaling (he measured the placement of my knees in relation to the pedals). the best part was, the guy explained the reasons for each of the changes and how it would effect my ride.
i kind of bombed out on my first race of the season this weekend (asthma attack... i blame the cold ohio air) but i'm looking forward to seeing how much of a difference the changes on my bike make (i take it in this week). and, even better, i get new maize n' blue handlebar tape!! woo hoo!!!
thanks to everyone for their advice!