I have a full 720x group that came on my Pinarello. It is downtube sti, however. It is a great group to use. When shopping be careful when buying hubs. The cones are not available so if they are pitted, you are out of luck unless you get a second hub that has good cones. The second thing to watch for is the FD adjustment screw retainer. They fail and I haven't even looked for that part.
I am in the process of retiring my group because an Italian bike needs Italian parts. I may put it on another bike. I have thought about getting brifters but they are hard to find at a decent price and look good. Lots of road rash examples on the bay. I also don't care for the cable coming out the side of the brifter. Just a personal thing.
The replacement for the DA set is Campagnolo Chorus with Ergos. Like it just fine. I still am running the hubs while I build up new wheels. The spacing is different between Shimano and Campagnolo on 8 speeds. I found sprocket spacers that make up the difference that did the trick for me.
I happen to really like 8V drive train. I am building a 10 speed Record for the De Rosa. Should be interesting.