I there is ant WP Member login and paypal IPN plugin?

Member Lock Plugin Documentation

The plugin is designed to work with a www.nanacast.com viral publisher account.

Viral publisher accounts can create unlimited free and paid membership sites. You can use Paypal, Authorize.net, and 2 checkout. It also has a built in affiliate system which you can use to auto join members to your Nanacast affiliate program.

You can do trial based, multi payment, recurring, dime sale, fire sale, limited number, dynamic price, and even coupon driven options for paid memberships.

It is based on the use of the "more" tag concept in Wordpress introducing a second more tag that allows you to make certain content members access only.

Additionally because our system is 100% integrated with Aweber and Getreponse you can auto subscribe people to your list at the same time their blog account is created.

Our system is also the only one designed to add the option of auto removal from your email list in Aweber or Getresponse if they cancel.

There are lots.

WordPress › Members Only WordPress Plugins
WordPress › Level2Categories 2 WordPress Plugins

More at: WordPress › restrict Tags WordPress Plugins

And they are all free. No PayPal intergration but I'm sure you can have them modified to do that pretty cheap.

We couldnt find a free membership plugin to use for our clients as we are a webhost and e-commerce specialist. However we were never able to find any free plugins that offered what our clients needed.
That is why we created wp-Member. We try and offer the maximum options and support for the minimum cost. If you have any questions, please direct them via our support section at wp-member.com.
Remember, all warrior forum users get a 25% discount using the following discount code: warriorforum
Plus, we are also dontating 25% of every sale to DogSOS, a charity that saves dogs from pounds that will destroy them if no one claims them after just 7 days. We are running a charity rotation where we will be assisting a differant charity each month. Full details can be found on our website. If you need anything at all, you can contact us via our website.

Thank you very much, we hope everyone at warrior forum has a very merry xmas and a happy new year from everyone at wp-member.

I started a thread about setting up a WP based membership
site: http://www.warriorforum.com/main-int...blueprint.html

I used MemberWing.

John