OscarTheTitan :
I want to be able to save things to the desktop or wherever I want and for it to go to the HDD not the SSD. Is this possible?
Its called an SSD caching solution.
Its easier to manage because as far as the OS is concerned there's only one drive (your HDD) with everything on it, but there is an SSD acting as a cache. Basically it monitors all the data moving between the HDD and OS, pulls out the most common files and stores it on itself. If that data is needed later on, it supplies it instead of the HDD. Meaning that, in general, you get SSD like performance. However a downside to this is you get far less control over whats made faster, and it will never be as good as doing a proper SSD+HDD setup, however its a lot easier to manage.
Having an SSD boot + HDD storage setup means that you will have to be careful where everything goes, you need to be vigilant about where you place things.
Doing things like changing where your browser/torrenting programs downloads too, moving your user files can help automate the process a bit, but you do have keep on top of where everything goes.