You can bring your own computer but if you want internet you'll have to pay obscene amounts of money for dialup speeds. I've heard that the UK customs officers

You can bring your own computer but if you want internet you'll have to pay obscene amounts of money for dialup speeds. I've heard that the UK customs officers also take great joy in limiting what kinds of literature and files the soldiers are allowed to import. They confiscate anything they deem obscene (eg Playboy magazines or a hard drive with porn on it) or antisocial (apparently "motorcycle gangs" were a hot topic at one point, so be prepared to say goodbye to your copy of Zen And The Art of Motorcycle Maintenance)