For the first time, we will be in Oregon for 10 days in mid September to experience (almost) nothing but beer. I have noticed that both Portland and Bend have beer tour companies that offer half day brewery tours. I'm thinking that this may be a good thing to do the first day we are in these two cities. I'm sure it is easy to find breweries on our own, but maybe it would be nice to start out with an experienced guide, safe transportation, a little sightseeing guidance, and beer insider info. We will be in both cities two days each (then heading to the coast). Anybody have an opinion on which companies to pick? Is it worth it? Any other advice on "can't miss" beer/brewery destinations in Oregon would also be appreciated. Thanks.