I intend to have my players be able to save and load up games, but to do this, I would have to have some kind of folder to store saved games. How can I access folders that are outside of the project folder? (I could also have one inside the project folder as well, but it would seem easier to keep save games elsewhere)
Vengroe,
The location of your save files depends heavily on the platform on which you are saving. You should look into the System.IO namespace of Mono to get a broad overview of the file helpers available.
On a PC or Mac I would think you could save your games pretty much anywhere you want, assuming the user running them has the proper permissions. When running on a device like the iPhone you are very limited to saving it in their app specific data locations.
This article gives a good overview of the System.IO namespace in the .NET framework. Most information and examples should be transparent between .NET and the version of Mono running in Unity. It is a bit old but it should set you off in a good direction.
http://www.dotnetjohn.com/articles.aspx?articleid=261
Specifying OS folders is a bit tricky since their location can change from system to system depending on drive letters and user preferences. You can use the Environment.GetFolderPath method to get most common system folders.