Digital Product Delivery - Help Needed!

Hi,

I intend to launch several Clickbank products. They range from:

1. Ebooks
2. Software
3. Membership site for monthly downloadable products (recurring payment)

I have been reading and found it rather confusing and challenging to figure out what to do with so many different scripts out there in the market like Amember, Easy Member Pro, Instant Member, DLGuard, EasyClickMate etc.

Basically, I need your kind advice as to how to piece all these together.

I am actually looking for a script that can handle the following:

1. Send customers an email with the secured download page link (if it is a single item/OTO) and login details ie password, userid and member login url (if it is for membership site).

2. Automatically captures buyers' email and name once he/she completes payment via ClickBank (does not matter whether it is through ClickBank or PayPal on the ClickBank Transaction Page. Frankly, I do not know what is the difference). Buyer need not enter his or her details in another opt-in box just to get the download. Details are sent instantly to Aweber for follow up.

3. Directs the customer to the Secured Download Page/Membership Login Page once payment is completed.

4. Script also offers Affiliate Program where my affiliates can sign up and enter an affiliate area where they can track their stats, sales, get unique affiliate links, etc. These affiliates' details will be captured and sent instantly to Aweber for follow up.

This script must be able to secure the downloads. If possible, provide a way to validate a software (optional) so that only buyers can use.

In future, I may want to create membership sites that do more than just providing downloads, perhaps serve a function like submitting articles, etc.

Pls advise me on what I should do, and how to piece all these together.

I will be using Clickbank to launch these products, so the script needs to be tailored for that.

Thank you so much!

Davion