What is the best approach when trying to use POCO with EF4?

That link you have provided for "POCO Template" is broken - but I assume you mean this.

I found these two links to be invaluable when setting up my model/poco classes. Poco generation and Poco options. As mentioned above it is a good idea (certainly if using the repository pattern) to turn off code generation in the edmx and create both a derived ObjectContext class and your Poco classes via the two T4 templates provided by Microsoft.

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