Husband and 5 yr old son are off out as I type to try to get a copy. I started reading Harry Potter just after son was born, in fact while I was still in hospital, and I can't get enough!!
Son is just getting the first one read to him with the scary bits missed out and will then get the second one read. By the time we get through them he should be old enough to handle the subsequent books which are a bit too scary for small widgets. Heck, they scared me!! Maybe I'm a small widget at heart