So sorry I haven't posted since I've joined! I was super busy hunting and with school and family stuff going on - I won't really have much time to post in this thread, but I'll try and keep up.
As for the HGSS thing, I'll be entering it as Heartgold please, as I found the following on there. I am using both to get a shiny before every gym, but hopefully I should get at least one shiny on that game before the 4th/8th gym!
And, to finish off, I recently found my first shiny for this challenge - a shiny Totodile called Jaws! I won't post the whole story here, but if you want to read about it it is in the SHC.
Thanks, good luck everyone!