Keeping track of your money isn't that much fun. Cha-Ching hopes to change all of that. Using a fun interface, and iSight integration this little app keeps track of both your expenses and your possessions. iCal and Address Book integration lets Cha-ching remind you when bills are due, and keep track of who you owe what.
Cha-Ching is in beta with a 30 day demo. There is a special beta price of $14.95, though the price goes up to $24.95 after the beta is over.