Get Peggle Nights for free.
Follow the link, make an account and simply send Peggle Nights to an alternate email address. You do have to sign up to their newsletter though, so just use a new email or a service like Guerrillamail.
And some extra levels here http://www.popcap.com/extras/peggle/bonuslevels/?whid=pn_passport_bonus
Apparently it can take a little while for the email to turn up, 5 mins or so.
Warning: may cause serious addiction.