Well, my recently repaired monitor has given up the ghost. No sparks or flames, just a quiet fade to black. I'm thinking that the filament probably burned out. Either way it's not worth fixing again.
Thankfully Bob had an old 19 inch CRT laying around that he kindly donated to my cause, so I at least have a replacement until next year when I plan on picking up a pair of 24 inch LCDs to replace 2/3s of my current crop of screens.