What type of data center would you recommend for running a Wiki off of? This Wiki will be having 100-200 users on at a time working on 50-100 projects throughout the day. Projects include video, images, and texts.
I would have thought a single, well specified server could handle that - why not look at somewhere like MediaTemple?
There's no need for a datacenter for something simple like that.
All you need to do is go and get a VPS hosting account and get on with the Wiki. I believe that you would do very well with a VPS. Your Wiki won't need anything besides this.
Thank you for your suggestions, but do you think a single server will be able to handle that many conenctions and requests at the same time? Some of these files are going to be rather huge in nature.