I'm totally not surprised that you liked Portland. I've been there a few times on business (my employer has an office there) and it really is a nice place.
It is a bit weird to see moss growing on the parking lots, though. It rains a lot there. Portland is also the greenest city in the United States, without any question. I have several friends there and it's interesting how they take for granted political positions that would be considered radical in the Midwest. Oregon is a different place, that's for certain.
It's really refreshing to get your perspective on my hometown. I guess there's a lot I'd been taking for granted.
Anyway, don't forget to get out of town for a bit while you're there. If you have a whole day, the beach or the mountains are only an hour away. But more realistically, go check out Forest Park - there's a lot to see.