I'll save you some time since I already spent months researching what seeds to buy and where. Check out protimelawnseed down here in Portland.
They sell all varieties that grow well here, from eco lawns to high end rye or ttf blends. All their ttf and rye seeds are using top rated ntep seeds for our unique pnw region from the last 2014 tests. Such as banfield/aspire/Hancock rye.
It's actually cheaper than big box store stuff to that has questionable varieties. JB can be good, but you can't usually find any info on their seed varieties which bothers me personally. Also just stay away from blends with Kentucky blue grass, it's a waste of time west of the cascades. Only grows in the warmer eastern parts of our states.
If you want drought resistant, turf tall fescue blend is probably what you want.