Most kindy's cost around $60 - $80 per term. A term is usually 10 weeks so its quite cheap really. We don't have the government vouchers here like you do in the UK.
Full time Day Care can be very costly its usually $30 per 1/2 a day but you can get discounts depending on your income. Lots of Day care centres have a kindy as well so you could pay for 4 kindy sessions a week and then the Day care payments. As I said it is all income based, so the more you earn the more you pay for Child care.
To have a look at some of the option available have a look at this website, this is where my daughter goes to Kindy, I pay $70 a term, its just gone up and they have a Day Care attached, they also do lunch care where for an extra $10 per session you can leave them for lunch and pick them up at 3pm. The only draw back to this is you have to drop a kindy session for the week. The context statement gives a full list of what services they offer.