orcishgamer: This is pretty much what I would think as well. I should note, I don't seem to have problems with languages, actually quite the opposite, so the language doesn't scare me, might be intimidating for my kiddo though:)
I think English will get you far in day-to-day life in all mentioned nordic countries, but not knowing the language will limit your choices of work. I know many English-speaking people who have e.g. married to Finland have complained that especially nowadays it is quite hard to get a job here, and they think it is because they don't know the language. This includes even big international companies where the official language is English.
Also, maybe some Dane (FiatLux?) should enlighten more, but I think Denmark is nowadays much more strict on who can move in and stay in the country. I think the official message is "people who are willing to work and build the Danish society are welcome, others are not", but still it can be quite tricky for even many highly educated westerners to stay in the country.
This occurred to me because just this morning I saw a TV program about the immigration situation in Denmark, where some educated American woman, who had immigrated to Denmark and has lived/worked there for nine years, complained how strict it has become to stay in the country, and now she is thinking about moving out with her child because even after nine years she would not be granted a permanent residence permit.
As it happens, if you don't have permanent residence, less local employers are willing to take the chance and hire you, if they don't know you can stay in the country as long as you like. So it is a Catch-22, employers will not hire you without a permanent residence permit, which in turn will make it even less probable to get one.
So at the moment, it may be much easier to immigrate to the other mentioned countries. I propose Norway, they have oil and salmon, and are not in the Euro zone.