If you're into scenery and landscapes you don't get east of the Rockies, a quick and reasonable trip would be to fly into PDX on Thursday afternoon, spend the evening checking out the hippies in town. Friday take a full day drive west out through river gorge to Hood River, then up over Mt. Hood to Bend and then over to Eugene. Leaving Eugene head West to the coast and up to Seaside and then back into Portland. Feel free to stop at any of the brew pubs that tickle your fancy or any of the wineries on the coast (being responsible of course). Dang. Now I'm daydreaming.