So it appears that I emerged from my last double century with a brinnelled headset, or "index steering" as some call it. It's minor, but when steering you can definitely feel that the fork 'wants' to stay in the straight-ahead position. There's a soft sort of click as you pass by the straight-ahead spot while steering left to right.
The impression I got from reading around (damn that disabled search) is that the bearings may have dented a permanent print into the race from prolonged stress while I was riding straight ahead, but then I read that this wasn't necessarily the case. If not, then what? I'd like to avoid a headset replacement as I'm pretty darn cash strapped right now - I'd love to think I could just ask them to grease up the bearings and be on my way.
So if any of you are a semi-familiar with what I'm talking about, I'd love some idea how much it'd cost to take care of it, and where the problem really lies. Thanks for the info.