*edit* @Cowboy254 does it look like acacia to you, rather than gum? I haven't had much to do with the former before and the bark doesn't match the stuff I've cut, but the brown heart and white sap wood makes me think maybe is still acacia?
Hey Kiwi, I was thinking that it didn't look like eucalypt, either in the bark or the wood. In fact, I was pretty certain that it wasn't, but I am not one to impugn another man's scrounge. Leaf pics could help. If it is a funny looking leaf that doesn't smell at least mildly eucalyptussy when crushed, then it certainly isn't. It could be an acacia variant but there are a fair number of them and I'm only really familiar with the ones near me.
It's good to see you doing some proper work, though
Is that Whole Lotta Rosie in the background there?