General things like get your CV together, get a portfolio of things you've worked on together to show potential employers.
Keep doing stuff in the meantime. It may or may not take time to get a job, but if it does, you don't want potential employers to hear about how you've just been sitting on your arse for weeks/months waiting to be given a job. If you're a programmer, keep programming. Take on a hobby project, just something small, but something that shows you're actively keeping your skills sharp and learning new things and having fun / already enjoying what they're going to pay you to do. Also it gives you something to talk about in interviews
If you're an artist, keep drawing/modelling/animating. You should already have a portfolio, but try to expand it. Try to tailor the portfolio for the jobs you are applying (so 3D models aren't so useful if you're applying to be a concept artist)
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There is a "GamesIndustry Fair" attached to the eurogamer expo (
http://www.eurogamer.net/expo/), which I went to a few years back when looking for a job. That was useful for talking to lots of people from the industry about jobs, what they were looking for etc. Only downside is it is at the end of September, so quite a way off still
There are other game developer conventions as well where companies often go to recruit people (though many are there just to promote their latest game, so don't make any assumptions). Even if it doesn't lead to a job, you'll meet people from inside the industry who can tell you what it is really like and give tips and hints on how to get hired
You can get some advice on getting a job in the industry from
http://www.gamescareerguide.com, and also at
http://www.gamedev.net/forum/101-breaking-into-the-industry/Also check out the jobs boards at
http://www.gamesindustry.biz,
http://www.gamasutra.com and
http://www.develop-online.net for an idea of what sort of things are available generally and in the UK and what employers are asking for / offering, and when you've got your portfolio sorted, start applying!