try terran or zerg?
if you mass a ton of corsairs with full upgrades you could own his bcs (have a number of starports ready to pump out replacements for those that die).. in the meantime you make your main army of whatever you use and get it into his base (shuttles, recall, straight on force, whatever).. if DTs are really what you want to use, make tactical attacks on his science vessels, turrets, and engineering bay once you are overwhelming his base, and bring in your DTs.. i'm sure it'd work.. but i'm not a seasoned protoss player, so anyone else who gives you advice that contradicts mine is probably right
