If there are any Australians on this Forum, don't overlook Coles (supermaket chain) own brand Fair Trade medium roast.
Despite it being cheaper than other name brands, and pre-ground, it produces a surprising amount of Crema. I know some think only home ground beans can produce a good volume of Crema, but this isn't always the case.
As mentioned in the "What Are You Drinking Now" thread, I feel the taste is well rounded and smooth. Very similar to what a coffee shop would serve you here in Sydney.
I feel I am most likely to continue buying it for just less than $6 a packet, than buying beans and grinding them myself.
Coles also have an Ethiopian blend, which has had some rave comments on an advertising forum.
Because Coles is one of the 2 supermarket chains that totally dominate the Australian food market, - just by volume sales they can afford to sell good products with their own brand on them at cheaper prices. So, you can't judge Coles coffee as probably not being good, due to the cheaper prices compared to name brands sitting on the shelves alongside them.