I Need to build a database/booking and dispatch system that intergrates with iCal, Address Book and all Apple device's What would be the best Way.

Hi

Can anyone give me some useful information on the best ways to design and build a database/booking & dispatch system that can be intergrated through ical, address book and available on my macbook, ipad & iphone and all accessed through icloud.

I started my own chauffuer Service a year ago as an independent. it's becoming a massive bore that most of my time is spent taking down information, checking if i am available for clients and with alot of diary checking and repeatative entries and email ping pong and invoicing, what i want to do is concerntrate on advertising and marketing and using my time off for R & R

What i would like to do is access my information in an app and automate most of the processes like

assigning the job to the client with intergration through iCal and Address Book

be able to email confirmation through mail with an invoice produced through numbers or excel

payment is already done through payleven mobile and must be done in person so i'd rather keep that seperate to all processes apart from a tick box to say it has been paid for.

I have been looking at all options FileMaker, Bento, Automator, Apple Script. to be frank im no expert and am a little confused as to what to do any advice would be greatly recieved.