Someone asked me the same question recently and I only had a few people to recommend. Professional reporters are looking to byline for known mastheads and be paid, and those interested in startups are usually doing startups. Also getting founders to blog won't really fill the gap we need filling in Oz and that's quality news breaking and analytical coverage.
ProBlogger will be good for resources but as a suggestion for someone to contribute, I'm not sure he has enough hours in his day to do what he already does!
I suggest doing a Mumbrella and doing the daily slog personally until the site gains traction. I've managed contributors before and it's a full time job to make sure submissions come through on deadline. Get the MVP and see if you can update it yourself a few times a week first before relying on others. You'll then get an audience/community bubbling away who'll become more enthusiastic.
I've seen great tech blogs in SF, London and Berlin with really passionate and talented people behind them. Particularly like the ones that cover user growth, product releases and funding stuff - factual news with a bit of founder journey/storytelling/case studies in between. Definitely not the updates that read like press releases. :)
I've also been blogging here and there about Australian startups on http://katekendall.com and http://blog.thefetch.org - happy to chat cross- or guest-posting too.
Cheers and looking forward to watching the site grow,
Kate