As for accounts, Trials should have 1 month as a full p2p, then they are 'reset' untill they upgrade. They would have a week to upgrade or they loose their stuff. This would cause more of a 'rushed' feeling, causing them to be more willing to purchase it.
Or just make a new trial account. This is a bad idea.
Or just make a new trial account. This is a bad idea.
Obviously they'd have to limit it to one per email, one per Ip range, comp ID, etc.
Maybe you have to register or pay for an account, and then you get one month free.
Obviously, advertising is the most important thing.