I am as green as you are, but I'll do my best to help... we leave for bear camp Wed. night so I have done a little homework myself.
I wouldn't hunt 460, I'd go to the Olympic Peninsula... this months Washington Hunter has a great article on O.P. bears (I picked it up with my bear tag today).
It had some great information about the changes needed since hounds and baiting were banned in 1996.
The GMUs bordering the Park are your best bet, especially those along the west boundry. There are less gates on the roads over there, but with the fire danger so high expect to find many of the ones there are locked, until we can find some relief from this heat.
Drive the roads (or mtn bike the gated roads) until you find some clearcuts, which will be berry fields at this time of year (the raspberries are looking and tasting particularly good this year)... find ones that have "gone red", where the foliage has changed and with patches of yellow wood (this is a sign of turning or digging in the logs for grubs).
Clearcuts with water and shade close by are going to be the most productive.
The article also said all the O.P. bears are totally black, without any of the cinnamons or blondes, like those of the Cascades or farther east.
If you are dead set on a colored bear, I would suggest Darrington, Index, or the area around Mt Pilchuck for bears... I think you'll find a lot better land access and a whole lots less people.
I hope this helped,
Jeff