Website Design Joomla

Hello, I'm in a new project: A interactive and attractive website with the focus are engineers, students, hobbyists and enthusiasts on electronics. I need: - A blog, - A page for tutorials; - A forum, - A download area for thousands of PDFs; - A simple and effective e-commerce - VIRTUEMART. A site that I like so much is: www.sparkfun.com. This site have almost all I need, the only thing I want that this site don't have is the download area, like a library ([login to view URL] - very ugly - html only). The background of the site must be very simple to use. Upload of tutorials, creation of new products, management of sales, etc... . I want a template equal the [login to view URL], with the resources I described, using Joomla.