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An easy bean for a first time roaster..... youll probably get as many suggestions as there are beans to choose from :o. For my money though, Ive always found that any of the PNG varieties to be quite easy to roast and very forgiving if the roast profile isnt exactly spot on. Most PNG varieties that you will see available from our polls are all very high grade, high quality beans and packed with great flavours so from a taste perspective they are excellent.
Buying green beans from Alan or any other commercial roaster is always going to be more expensive than buying from CS or perhaps a local roaster who is happy to nurture a budding home barista..... there are a lot of overheads to think about and these bills must be paid for somehow. There are other green bean suppliers around on the Net in Oz and a google search will reveal who and where they are, so thats one avenue you could use to find an alternative source.
Why dont you buy a 2.5 Kg bag of the PNG bean in our current poll? As far as I know, the polls are still open and you wont get such high quality green beans at thr prices on offer here. Try your luck and give it a go, you wont be sorry :).