Welcome, TS!
I'm river136. I've been doing stereo to surround conversions for a few years now.
I was into Quad when it first came out.
At first, I had a panasonic 4 channel 8 track player/recorder/amp I bought in an Army PX,
along with some quad Pink Floyd, Traffic, etc.
Later on I had some high $$ equipment I kept for quite a few years, but eventually sold as it
was showing it's age.
Years went by, and I got that urge to hear my quad again. I stumbled upon some folks that
were using Plogue Bidule to create surround conversions, and I fell right into it.
It's been quite a journey, and I've enjoyed the company of some fine folks, such as the ones
that run this forum.
Oh yeah.
I've enjoyed taking my stereo LP's/CD's and converting to surround. 
It just gets better all the time.....