design web form for document selection and email return

I have a series of case studies (PDF files) I wish to offer to my website’s visitors in exchange of their personal info (see below). I wish that visitors can select the file(s) they want to download. I want them to receive an email with the files attached and collect their info in a file. - Producing a php form for collecting user information (name, surname, email, company, position, phone #, checkbox and simple questions with text fields /combo). I want to be able to add other fields later if required. - Collect visitor’s information (IP, language) - Adding a list of check box items to select files to download. - Captcha verification - Process this information in php/javascript - Send the selected files to the email entered in - I want to log and append this collected information to a file + success/fail status Please test with web supplier : [login to view URL] You have suggestions, please make a proposal when you bid. I believe that bidders should already have something they can build on: this is a very simple project, and I expect low bids.