I have to admit that I don't like the texture of poultry breast meat done sous vide. Maybe I should experiment with not vacuum sealing it (just leave it with minimal air). But if you have an instant read thermometer (or a stick-in-and-wires-out continuous monitoring kind), the key is temperature. Just use a low oven (225 say) and pull it out when its ~135-140.

My favourite thing to sous vide is steaks, which I finish on a steal plate on my grill. But I just use the beer-cooler sous-vide trick, so I can't really do e.g. 72 hour short-ribs.