Is cost a concern?
If you're going to get brifters it will be more cost effective to go with Shimano to match at least your current rear dreailler and cassette. You will still need a new front derailler, mountain and road fronts have different cable pull.
If you want to go with Ergopowers, you need to either use a Shiftmate or get new rear derailler, cassette and rear wheel to put it on. Campy 8 speed has been discontinued, so you'll be going to 9 or 10 or 11 speed there.
Either route will still leave you needing to something about braking. Travel-mate cable pull adjusters will adapt the road brakes to V-brakes, or you could go with cantilevers instead of V's, they have the same cable pull as road brakes.
May be cheaper to get a new bike!
Good luck.