Really? Nobody has mentioned Kaleidascope Tattoo yet? Kaleidoscope Tattoo Art Studio - Best Studio Tattoo in Sydney
Stevie Edge is the only tattooer at the shop who I really know of, but looking through the portfolios, it seems like a really nice shop.
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Oh and @petepunter I would avoid going with something like the tattoo you posted above, as it has no outline and is already nearly the same color as that persons skin, if your going to go with color I highly suggest getting something with a black outline to hold all the colors in and make them look nice. From what I've read, and from what I'm sure a lot of people here will tell you, no outline tattoos tend not to age well.