Well, it really depends on what types of fish you're after. A couple of recent posts on washingtonlakes.com reports are showing some nice sized bass from "Liberty Lake" not too far from our WA/ID border.
Rock Lake is huge and deep, with many LARGE sized browns and can be a great Bass lake as well. Multiple species such as Bass, Browns, Cutthroats, Rainbows, and "sea monsters" that have never returned anyone who have fallen in.
Bonnie Lake is Northeast of Rock Lake, and is only accessible through a "channel". Smaller fishing boats are able to ease up the narrow path quite easily, but this deters big "bass boats" and larger vessels from accessing the lake. The lake itself is about 4 miles long, and has an island (BLM owned) that you can camp on. Great fishing might I add!
Of course, you have Newman not too far from Hauser, and some other lakes such as Downs, Williams, Chapman, Amber, Badger and some others within 30-45 minutes South of Spokane.
*Downs Lake is in the middle of nowhere, and is covered in lily pads. Picture a maze, with overgrown lily pads and driving through "paths" across the lake. It's like "where's waldo" while fishing. Great Bass though, and some anglers this past weekend showed me some of their "tiger trout". Cool looking fish....too bad I couldn't catch the big Largemouth that was staring up at me through the water!