I don't know where to start so here goes. Sorry if I don't make sense

Right now I'm at the planning stage to start a online, on demand elearning business.

I have thought out the following so far:

For the front end of the business, I will use an application like Dreamweaver to make the site which should be easy. I will create links which in turn will lead to presentation software.

The software I might use is Macromedia Captivate to deliver the presentation, at the end of the presentation there will be a question and answer part.

Now I have figured out that I need a database because I need Captivate to output results such as the answers to a server.

So far, I know that Captivate can communicate with MS ACCESS and msql, however I'm trying to figure out is the database software I should use.

I'm familiar with ACCESS and I'll be more inclined to use this it, but I read somewhere that only a small number of users (approx 17) can access it at the same time, I don't know if this is true or not. However, for this project, I envisage I could have up to 1000 users (maybe more) at the same time.

Also, security is something to think about as I have no experience in this area. I would probably get the server hoster to do all this for me.

If you think the above system design or software selection is perculiar then please let me know so I dont have to waste my brain cells to think about