biomed website install

Hello I want to make a website where users can easily download manuals for over 1000 medical pieces of equipment. I need it to be easy for me to upload and change the manuals if needed. I also want a seperate link on the website to be able to let users blog about specific issues they are having on specific pieces of equipment and i want it to have a couple of other links for contact info, news and recall alerts. I dont know if oscommerce is the way to go for this site but i found some nice templates that i want the site to look like. Templates number 20369 and 20159. Let me know if you have any other questions