Integrate PayPal Auto Respond email

Just like the title says, I need someone to integrate PayPal on my site.
I already have the site up and a paypal account.

So essentially on my site I am selling a few digital items, when the user clicks any of the "buy now" buttons and completes the payment, I want my site to automatically email them an email with a "pre-recorded" message that I made and a download link to the item they just bought.

I know this can be done with the PayPal IPN, you should be able to do this with just PayPal, no 3rd party services.
You will probably just have to write the PHP scripts that will auto email my customers.

I can pay you for you work, if you can help me with this please contact me on here or skype me, if i am not online, leave a message anyway, i will respond

skype username: blackhatanyhat

Hi magento plugin is the best for you just google them mate , because I saw a site that uses magento ( they sell tablets ) when I pay them via paypal I receive immediately a email that I have order tablet from them together with transaction details and shipping address