Business on the side

I'm a full-time Manager of a 1 person corporate video department. (I'm it.) I have a Media 100i system in my house with Beta SP(it was given to me to use, with no cost to me.). I'd like to start making some cash on the side by offering my editing services on the side. Because I work full-time, I can edit only during nights and weekends. My question is, who would I approach, and how would approach them? I have many video contacts in this market, although several of them maintain a vendor relationship with me and my company, but they know the quality of my work, which I feel is extremely high. Who else would you try contacting, and how would you position yourself, if you were in my shoes.
I have 20 years of video experience as a corporate producer/director/and editor, have one a few awards, and really know editing. Thanks!