Registration Plug-ins that help simplify the registration process; registration requiring only an email address?

Are there any plug-ins that help simplify the user registration process, and that only requires that a user to submit an email address, to start the registration process.

 

I am looking for plug-ins that can help me make the registration process simpler and easier.

 

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For example, a "registration by email" plug in (or other plug-ins that simplify the registration process).

 

My goal: At the end of the process, the new user will have an account with a password, and I will have a new user with a confirmed email address.

 

ex.

 

Step 1. I provide the user a text box where I request an email address

 

Enter your email address to sign in or create an account [text box]

 

[Register Button]

 

Step 2. The site will then automatically send the new user an email such as:

 

Email Subject: "Finish creating your account on xyz site"

 

Email Body: Click and confirm that you want to create an account on "xyz site".

[Confirm button]

Or create an account using this link:

[link]

 

Step 3. User completes the registration process by establishing a password.

 

At the end of the process, the new user will have an account with a password, and I will have a new user with a confirmed email address.