Taking the first step

Hi All,
I'm looking at taking the plunge into property investment. I'm about half way through Steve's book From 0 to 260+ prop in 7 years. We have a family home on the sunshine coast($410000) and are looking at moving interstate. The Q is do we rent it out and turn ut into an investment prop or do we sell it and look for better return i/p. it would be rented out at App $360 p/w and has $ 330000 still owing . If we keep it it will be negative gearing but good long term growth, is this the best option