I have been working on the development of my mono DSLR for some time now and am finally getting some results that can be shared.
Below are two links, one for Eta Carinae and the other for the Lagoon Nebula, in both cases one hours worth of Ha data using the mono 450D.
http://www.astrobin.com/full/244755/0/
http://www.astrobin.com/full/244873/0/
I continue to collect OIII and SII when weather permits and will get some colour processing up for these in the future.