Wages in Amsterdam are lower than London, but the Netherlands have a great deal for ex-pats: the so called "30% rule", which means that you only pay tax on the remaining 70% for the first 8 years there. So your take home pay can be really good (and it has other benefits like a good healthcare system, free education for the kids, etc).

Also, if you want to start a start-up low wages are actually a plus...

(Source: I started a startup there and have several employees on the 30% rule)