Any Experience At Application Service Providing?

gogo asks: "I'm working for a company which intends to provide an end-to-end business solution to the end users over the Internet. This will include complete sales, purchase, inventory control, CRM, financial accounting, etc., for small to medium business. Being asked to look in to this project, I have decided to have a multiprocessor Linux box for the server, and Oracle for the data base. Since the nature of the application is quite complex with all of the business logic that has to go into it, I'm toying with the idea of having the user interface in Java, as applets. But I'm not very sure how the whole thing will turn up. Is there anyone out there with some similar experience? Am I sounding reasonable or outright crazy? I've heard lots of people talking about using things like EJB, and CORBA objects to put the business logic back to the server side. I'm looking for real world experience, here."