Ah yes, Sailrite, p. 32 (of the 2004-2005 catalog) has all the hardware and the track. Yes, the track seems pricy. I, too, was wondering about the flexarail. An external boltrope track seems like a good system. I notice there are also other boltrope options, such as aluminum (actually, it's called "awning track" and is made for awnings). That's encouraging to know that it has worked for a sail. I wonder if the folks at Sailrite would recommend it for that. I could always get a small piece of it and put some fabric in it with a boltrope or slug and see how much force it takes for it to fail.
I'll have to read up on the internal track on a wooden mast and see how much trouble it is.
I might opt for high-tech in the end, because I like the idea of being able to raise and lower the sail quickly and have the luff attached at all times. It seems like a good safety option. If I'm not sailing alone, I'll have my kids out with me (when they get old enough), and I'd rather feel 100% comfortable in the boat.
Charles