Hi and welcome from QLD
Pretzy’s on the ball.
Batteries from an Aussie seller on ebay - I’ve bought a bunch of protected 3100mAh 18650s and a charger from this guy : http://stores.ebay.com.au/supersports600
- quick delivery and appears to be an excellent quality product. ( better than my xxxxfire cells ).
Also got a good Ultrafire C8 from this guy : Security measure
but the int-outdoor.com sourced XinTD V3 C8 with C3 emitter is way better because of the tint, and as good as they get imho. (without modding) Reasonable delivery time from memory.
I’ve also bought stuff from manafont and have had no problems, and even the ebay HK C8 clones with XM-Ls are OK for around $10-$15. Just make sure there’s a picture of the LED in the listing and the store doesn’t sell mostly crap. I got a Q5 instead of a T6 once.
They’re easy to distinguish - the XM-L T6 has two metal corners : LED close-ups.
Anyway have fun and watch your wallet !