Booking Calendar + CC payment

I need to make a booking calendar that will show prices on each day of the calendar month as there are different seasons for this accom. The user will be able to select a block of days then when the wish to book the system needs to calculate those days and add tax, and then offer them if the want to pay all at once or 50% now and the other 8 weeks before arrival. Then the system will need to give the option for a secure CC payment or a direct deposit. And then they will be able to make payment right there and then and for the system to send an email confirmation to the guest and also to me. The calendar needs to look nice from a design perspective, this calendar is the closest thing that I have seen to what I need. [login to view URL] My site is in joomla 1.5 but it would be great if it can be managed seperatly to joomla as I may want to change the content management system one day. But I guess joomla knowledge will be needed for the developer. There will be one person managing the dates for this calendar so that's why it's better for this calendar to be managed independantly but be seen as part of the site as it will make things less confusing for the person managing this calendar. There are many other sites like mine so when there are bookings made the management companies let us know to block the dates off and the person managing this will go in the back end and block the spots off. Just trying to get an idea if there is something already available that I can use or that can be modified to suit. Or if I need a developer to write this from scratch. [login to view URL] Hope to hear some great advice or find a great developer to co-ordinate this project :-)