Can someone advise do any credit include insurance now?
Some credit cards like Amex/BOQ technically provide cover it if the points come from the card (or could have) however I have not tried this and would recommend checking with them first. Amex don't specifically provide a certificate of insurance unless requested which differs from CBA/Covermore who provide it on activation. Bankwest also don't appear to have any purchase requirements.
Here is a list of some banks that offer credit card products with travel insurance included (and the hurdle required):
ANZ - Requires $250 single transaction spend on the card prior to travel
Amex - Requires trip purchased on card or points from card (see above)
Commbank - Requires $500 single transaction spend on the card prior to travel
David Jones Mastercard - Requires return flights purchased on the card
Bankwest - No purchase required
Bank of Queensland- Requires return flights purchased on the card (or points earned from the card)
HSBC - Requires $500 single transaction spend on the card prior to travel
Bendigo Bank - Requires $500 single transaction spend on the card prior to travel
Bank SA - Requires $500 single transaction spend on the card prior to travel
Bank of Melbourne - Requires $500 single transaction spend on the card prior to travel
St George - Requires $500 single transaction spend on the card prior to travel
Suncorp - Requires $500 single transaction spend on the card prior to travel
NAB - Doesn't appear to have a purchase requirement for international travel and $250 for domestic
Westpac - Requires $500 single transaction spend on the card prior to travel
Qudos - Requires $500 single transaction spend on the card prior to travel
BankVic - Requires $500 single transaction spend on the card prior to travel
ING - Requires $500 single transaction spend on the card prior to travel and a card with a credit limit of $6k+
Bankwest with no limit or activation required seems to be the best and ANZ with only a $250 spend requirement is second best.
On another note re: CBA or any insurane.. i usually fly one way and return when im ready by booking. Is this still covered?
For CBA international travel you just need to spend $500 (in a single transaction) on anything prepaid related to the trip before you leave Australia. This can be flights, accomodation, car hire, tours, cruise etc. They do not ask for proof of this to take out the policy but do require proof if you make a claim.
2) Are one way trips covered, (even if you return within a year)
It's worth noting that even CBA insurance doesn't provide coverage for one way trips. You need to have return ticket booked (this can be two seperate one way tickets but there needs to be a flight back to Australia).
All else failing you could look at an annual plan if travelling a lot or just single policies for each trip if travel isn't very frequent. Obviously it goes without saying take anything above of my research with a grain of salt and dig into the PDS's for each to check they're valid.