I've heard wonderful things about the Eastside districts, Bellevue, Lake Washington, Mercer Island and Northshore all have very positive reputations. I know several Bellevue high schools end up on one of those lists, but I always take those with a grain of salt.
The bummer is that in WA state funding for education is about to get deeply cut so class sizes will go up and funding for gifted/highly capable kids is going to be nil. I have several friends who are pulling their highly capable kids out of the public system and putting them in private programs next year.
I'd avoid Seattle Public Schools, even though I'm a resident-- they have had terrible administration for far too long. They are spotty, and most of their schools' performance is split along socio-economic lines which causes strife in the community at large.
If you are on the Eastside and your husband is working in Kent, the commute is a "reverse" communte and the driving won't be too bad! My husband did a Seattle to Tacoma commute and it sometimes took him less time to get home than my 11 mile seattle to Eastside commute!