Providing cloud service to my house

[KING_OF_SAND]

I am looking to provide a cloud service for my house ONLY. Just to back up documents and other importent information. I have a blank 500gb HDD that I will use in my main rig but will ONLY be used as a network drive that others in my house can use to retrieve documents as well as save them, whether it be an excel spread sheet or a word doc. My PC is plenty strong and my network is plenty powerfull enough to handle the load. Is there a cheap or free service out there that will let me do what i want?

Also I have another PC were there is only a 120gb HDD and i want to put .exe files on the "cloud" 500gb HDD. Things like Internet explorer/chrome/firefox. Also office aplications like word/excel etc. I want all this to be one.

I understand that i can make a HDD available to save documents in Windows 7 but i would much perfer to do this.

 

[BaMb1N0]

Just for my proper understanding: why you wanna do this?

 

[hmmblah]

You really don't want to do that. It will slow your PC down. Keep the exe files on the computer you will use them on. You could move your libraries over to the 500GB hard drive if you wanted or simply create shares that could be for media like pictures and music. What you are wanting to do isn't really a cloud, just simple file sharing.