Yes, go see a dermatologist. Definitely worth it if you are (relatively) rich.
Fwiw, I've been on Accutane twice (inc right now, actually), and I'm a big fan. Nothing worked like it (also tried Proactiv, retinoids, etc.). My only side effects were lip dryness, but as mentioned in other posts, people have a variety of experiences. For me, it's been effective, and if you want to nuke the problem and never/rarely think about it again, it's worth considering. But (and your dermatologist should guide you to the same conclusion), start with something gentler and see how it goes.
Why I'm on it again: ~8 years after the first course, I started getting some recurring acne in a particular area of my forehead where I never used to get acne. I'm a perfectionist and after trying something else for a couple months, I figured why not, given how well I tolerated the side effects before. Had I not tolerated the first course well, then I probably wouldn't have done a second, but the improvement from course 1 was still worth doing in any case.