SIMs for two Nexus Ones in Rome

[Effendi]

TIM simcard: 10€ including 5€ of credit (you can use it for calls, SMS, etc...)
Internet Senza Limiti: 24€ for 1 month plus 5€ activation fee (could be free for new users, surely with Wind it is).

You don't add minutes, you add credit (you can refill any amount with TIM) which you can use for any need (voice calls, SMS, MMS, video calls...)