I've always thought the FCR3 would be just fine as a touring bike, with it's fender clearance, V-brakes and fatter tires. While the components are a little low end, they're still perfectly servicable for a short to medium tour, in my opinion. One thing you might want to change out is the flat bars. You don't want to spend too long in the saddle with only one hand position. Something like
http://www.nashbar.com/profile_moreimages.cfm?category=92&subcategory=1049&sku=9756&brand= <-these would give you plenty of hand positions and not require expensive shifter/brake lever upgrades. I think the FCR has eyelets for a rack, but if not, perhaps a B.O.B. Trailer? Have fun!