I personally wouldn't move to Sunshine. I have lived in Footscray and prefer it to Sunshine. But that said, there are better areas of Footscray than others, and I never went to the shopping strip there. I should mention that Footscray is very close to Sunshine.

I used to go to TAFE in Sunshine, and would not walk from TAFE to the train station. Unfortunately it can be very rough, and gets not a few mentions in the media.

I live in Sunbury, which is out of Melb. It has a good train service to the city and good schools and playgroups, etc. I would say keep looking.