I.G.
You will probably be happiest north/east of Seattle. Anything from Edmonds to Bellevue along the I-5 and I-405 corridor and maybe along I-90 (Issaquah). Personally I am in love with Woodinville - it's just so cute and walkable.
School districts in that region are pretty good too. Be warned though, the commute can be HELL!
We live in Seattle and love it. It less than a 20 minute drive to end up in the middle of nowhere and my commute is bearable.
Good luck and welcome!