Document Control Software

Hi,

I currently run a company in Vancouver. I recently ran into a lot of financial problems and had to sell my company to a competitor. Even though it was hard I had to accept the reality.

    The processes for the sale started yesterday and they asked me to hand over all the documents related to the clients.

                   I was using an old software to manage all the documents it doesn't have version control or categorization.This has become a real problem now. They have asked me to move all the docs to a new software and then hand over it. Now I am looking for an affordable software. They have suggested using this document control software. But they are not forcing to choose it. Even though I am planning to use it currently, I am also looking for more affordable options. So suggest me some.