Thank you all for your input! I have adjusted my seat height (thank you indysteel, as this made a big difference!) and have just spent a lot of time riding and tackling challenging curves and hills. I'm still a little hesitant around some corners (nothing new for me - no depth perception!), but I feel pretty much at home on the bike now. I'm loving the hoods (way more comfy than my mtn bike!) but the drops are going to take a LOT of getting used to! I usually ride at least 25 km each weekday (I use it to commute), more on the weekends, and I've just signed up to ride a century on October 2. Should be a good breaking-in opportunity!

Thanks again for all the helpful advice!