1) there are some tech support jobs around town. I've worked at a few small-mid sized places doing that, plus some public institutions have in-house. Pay isn't all that great, obviously. Nurses get paid a lot higher.
2) are you kidding?! There are way too many bands here in Portland. Go to a bar, coffee shop, and just ask people. Half of them are probably already in a band. If not, you could try craigslist. There's a 'gig' section. Pick up a Mercury and Willamette Week to see the ads for venues and band members.
3) Craigslist
4) Walk around a lot...? I think other people could answer this better than me.