Thanks for all the good information everyone. I have been reading it the last week but not been able to reply.
Discovered last week how well the medical profession is payed! anyway...

UPDATE

So I have come to a bit of a decision. I am planing on investing an additional 10k shortly. That will leave me with around 10k of my 30k flexi loan to cover unexpected costs e.g. tenants moving out, not paying rent etc.

The 10k I have available I am looking at using 5k to increase my holding in my existing portfolio with it most likely going to RYM at this stage.
The extra 5-6k I am looking at heading to the ASX with some higher risk investments there. Thinking three splits of 2k each (could that be to small?)
Shasta - Done a bit more research into some of the companies you have said are worth looking into. Currently researching AYN and HLX, both look interesting!

I still have Pike River memories close to home tho. I know its different with open cast and not mining coal...