Hi Jake,
I want to put a form on my site so that I can capture visitors details.
To create a simple generic signup form you will probably want to style further browse to the "List Settings" -> "Signup Code" page.
I want the form to redirect the contact to a specific page on my site
This is done on the "List Settings" -> "Custom HTML" page. Create and name a new set and edit the "Signup Success" page. At the bottom of the editing page there is a place to enter a forwarding URL. Save the set, go back to "List Settings", choose the new Custom HTML set where indicated and Save the list.
Please let me know if I can be of further assistance!
Regards