Just realized I never followed up on this.
I think it worked out great. I still took lots of digital pics, but some of the film shots are my favorites. I definitely missed exposure a bit more often than I do on digital, simply because of the lack of instant feedback (funny how reliant you become on that), but not too much. That lack of feedback plus the limited latitude of Velvia really forces discipline in metering, which I found also brought discipline in composition and timing.
So, I of course wouldn't say that film is going to replace digital for me, but I do think I'll bring along a film camera more often from now on. It's fun, give it a try!