Mount Waverly for commute and also Q about powerlines??

Thinking of moving here or nearby upon returning to melbourne from overseas. We have a 2 yr old daughter and one of us will be working in Bayswater and one in St Kilda which seems like a nightmare combination for trying to find reasonable rent and both of us to commute. Do you think Mount Waverley would suit for this reason?

Also, having read the reviews here which appear mainly positive, I am wondering if anyone could elaborate on this issue of powerlines and why it poses a health risk?? TIA