I'm in the same boat - rough plan at the moment is to arrive September and no later, and have been a bit concerned about how long it might take to get a job especially after a couple of things I have read. I figured that September gave me a couple of months before everything start shutting down for Christmas? I'm a PA so also hoping that because I can work across any sector and am not going to be too picky initially that I should find something fairly soon.... fingers crossed anyway!
Emigration show might be the one by Australia & New Zealand magazine at the Business Design Centre, Islington, 11-12 Feb. I think the tickets are 10 pounds if you book in advance.