You may not like what i am going to say, but fly fishing isn't the easiest thing to just "give a shot and see if you like it." Success most often depends on having a cast with proper form and proper presentation of the correct fly. If you seriously want to give fly fishing a shot, take a lesson. All the local shops offer beginner lessons. There is a great shop right across the Willamette from you. The Royal Treatment in West Linn. The Orvis store at the Bridgeport mall probably offers free lessons. If none of those are an option or you dont want to, at the least go out with someone how knows how to fly fish. They will be able to observe your cast form and offer advice.
I strongly believe that trying to learn on your own is a bad idea. You can't see what you are doing wrong and Youtube videos do not offer form correction advice like a certified cast instructor can. I am not saying it is impossible, not at all. I am sure lot of great fly fishermen have learned on their own. However, if you want to get into fish as early as possible, help yourself learn correct form right from the start and lessen the frustration you are bound to experience when your fly line ends up in piles at your feet when you expect it to lay out in front of you. You will never regret taking some lessons to learn this art form. Keep us informed if how it goes.
I used to be a gear guy but once i picked up a fly rod, 99% of my fishing is done with a fly. It is my obsession. It has gotten into my bones and it feeds my soul.