Hrqls: Lisbon is one of the most beautiful citys in the world!!! You'll love it! Anyway, Mr. Darles belongs to the north, where you eat properly and cheap... it's great for vacation, and Oporto is also a very peculiar city.

Finding a holiday home in Lisbon it's trully hard. You'll find a lot of them (and some Dutsh camping parks, for example) out of the cities. I know one near Coimbra (an old universitary city, pretty enougth to earn a visit). Tell me if this is an option.

Anyway, you have a lot of small hotels in the heart of Lisbon where you can feel almost as "at home". If your interested, I may link some of them to you.