Nah I read them as soon as I was done with Prisoner of Azkaban. Found Chamber of Secrets to be quite an awesome book and it was my favourite for quite a while.
It was several years ago but I've read the entire series 4-5 times together but I own the third, sixth and seventh so I've read them 10+ times each.
There's room for anyone that wants to be in, and will be active. Surprisingly large amount of suitable characters in the Deathly Hallows.