Hi all, am planning on going camping soon, and have come to the conclusion that I need to get a tent

. For the past 25 years or so, I have always been quite happy camping in a swag, and swags have served me well. However, my family has grown somewhat, and on this trip there will be myself, SWMBO, my 9 year old son, my 8 year old son, 5 year old daughter and 1 year old son. Now the two eldest boys would be happy to swag it (so they say - the eldest has before, not sure if my 8 year old really would be comfortable in his own swag, he doesn't have as much bravado as his brother), but my daughter is not, and the youngest, well, he is simply too young.
So, I was thinking of getting a tent that is big enough for all of us, and ideally one of those flash ones that can be separated into rooms, so that way my daughter and missus can have some privacy when getting changed etc. Don't want something too big that is going to need a massive area to set up though, and don't want anything too bulky.
What have people here used, what brands are recommended, what brands should I stay away from? I want something that is going to last a few years, but don't want to be forking out a small fortune for it either. Any advice greatly appreciated, been a long time since I have slept in a tent, and have never really had to look into buying one before.
Cheers
Bookmarks