Well, my intentions was something better, monocolor and dedicated, but they are very expensive. So, I bought a Canon T3.
It is a little different from Canon 350D, because of its RAW-CR2 format, pixel size, ISO, and some plus features.
This is my first try. The clouds gave me permission to do !
GSO 305 mm - Canon T3 - ISO 800 - 1 h 14 min - 18 x 4 min - OAG - Coma Redutor - Skyglow filter
large scale:
http://www.astrobin.com/full/91454/0/
large scale of keyhole:
http://www.astrobin.com/full/91455/0/