I watch The Wood Whisperer (see link in the links bar) video podcast. Marc is great at getting concepts across in a manner that us weekend garage woodworkers can understand. Last night I watched his "live feed" and participated in the live chat. Got a couple of questions answered and I think for the finish on my workbench I'm going with BLO (boiled linseed oil) mixed with a little varnish. Of course, I'll try a test piece to see how it goes, but I'm thinking it'll do a good job of bringing out the contrast between the walnut and maple.