I'm no bike mechanic, but from what I've read, switching from a straight bar to drops can present some problems that can get tricky (if you're not a tinkerer) or expensive, depending on what kind of brakes and shifters you have.

For the brakes, you will need different brake levers than what comes with your straight bar, and if you have v-brakes (aka linear pull), the brake levers wouldn't be compatible without a travel agent.

If you have the grip-twist shifters on your straight bar, there won't be a convenient place to mount them on drop bars if they can be mounted at all. Changing the shifters could become an expensive proposition if you can't find replacements that are compatible with both drops and your derailers because you may end up having to change derailers, cables, etc.

I have ordered a set of aluminim Titec h-bars from nashbar to give myself some more hand positions for long rides. The twist shifters I have and v-brake levers won't involve anything extra to move over, and the bar-ends that came with my bike (craigslist special) will go in the front to give me something similar to aero bars (again, at a minimum of cost and tinkering).

If you think you might want to make a switch to drops in the future, you should discuss that with the LBS before you buy. They should be able to tell you how much of a problem that switch would be and they can point you in the direction of a different bike that would be comparable to the Smoke for now but would be easier to upgrade later.

Oh, and if it were me and those were my two choices, I would go with the Smoke because it will do everything you want it to do and costs less. Bike fit is a personal thing and there's no need to break the bank on a bike until you have a better idea of what YOU want out of a bike to fit YOUR needs.