Loads of work in Denmark. Truth be told most Danes work for the state in one way or the other or are 'unemployed' (they have a fancy way of hiding the really high level of unemployment) so most of the real work is done by foreigners, and there are an awful lot of foreigners.
If you're not expecting to stay long use your UK company. If less than 3 years, try and get on the experts tax rate. If longer get yourself a good accountant.
Learn the language as soon as you can, it is pretty hard unless you can get on a course, as no two speak it quite the same, but the more words you know the less often you'll suffer a violent assault for being a foreigner (only had one myself last year, but have already had one this year). Remember that we're all black to them. Can be an enlightening experience, but many ex-pats really hate it and leave quickly. One kommune is practically impossible for a foreigner to get to live, can't remember it's name right now, it's up north a little from København and there're a good few IT companies there, so if you find it difficult to register and find somewhere to live local to your work, don't fuss it, you'll just have to commute. As many Danes will tell you, if you don't like it you can always fsck off back to where you came from.
There's this thing called 'Jantelov', which is a flowered up jealousy thing. You've never met jealousy in all its green eyed glory as you'll find here. So, if you get asked about your car: you don't have one. If asked about how much you're paid: complain the dustbin man gets more. If given 2 weeks to do a 5 minute task, take 3 weeks. Remember to say how marvelous everything is, for example, when tripped up by rubbish in the street say how at least they're cleaner than where you come from. They know it's all bollox, but is Jantelov.
They all like to think they are the best in the world at what they do. Truth be told there are quite a few good ones but they've mostly left the country, and the rest suffer serious insecurity issues, and need their egos stroked constantly. Never, ever, point out just how appallingly bad the 'thing' your working on is. Give quiet suggestions about how it might be improved, and make that look like it was someone-else's, preferably some danish co-workers, idea.
Management is often barking mad. Many managers pride themselves on having zero technical knowledge. Meetings, they love meetings. Often times you'll maybe have two 2-hour progress meetings a day and they'll be baffled as to why nothing is getting done. For which reason never, ever, go on a daily rate, always an hourly one. They will rack up the hours if they can get away with it.
Oh, and it isn't England or anything like it.
threaded in "måske" mode
