Well, for those of you that missed the 1and1 promotion, the hosting plans they offer all sound very reasonable.
$5/mo:
1 domain registration included, 500mb, 5gb/mo, 50 POP3 accounts, 5 subdomains
$10/mo:
3 domain registrations included, 1000mb, 15gb/mo, 150 POP3 accounts, 50 subdomains...