Cool DEM,
let us see some screenshots of your renko charts

Where can we find your software.
One and a half year ago i started to program a little TA app. (For me and it was only a hobby)
But the little project growed and growed.
And it became commercial ...
Well, and next week i hope to do the last codings.
You can see screenshots:
http://www.web-o-tron.com
First I started to program it with the whole MS Visual Studio suit (although VisualBasic alone is perfect for this job).
But, because I am also working on Macs, and Microsoft VisualStudio is not made for Macs, i rebuilt it with Macromedia Director.
(Director is for Win and Mac)
About your idea:
I think the idea to open a financial programming forum section is great.
Very good idea ... perhaps it could be a place for nice suggestions.
PS: Renkos are cool.