Congratulations!!!

If the salaries are slightly different then you may certainly choose Australia. You will not get 'cultural shock' too, well, your profile reads that you are form UK. You may find Doha a somewhat dull place, western expatriate usually have the same experience. Your countrymen residing in Doha can tell you more. The transfer from UK to Austr might be somewhat smoother to you than Uk-to-Doha, I assume.

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