Re-cap the analog board, that is GREAT news ...that is easy for me to do, i've re-capped my Mac Classic II analog and motherboard w/ 100% success and have soldering experience on many other non Mac related projects...I actually find re-capping fun (call me nuts).  Its slow but easy and gratifying work ...I usually put the music on and enjoy a beer while I am doing it. 

...so here is a question, do you think that the display going dead just after the power supply swap was coincidental? Could turning the brightness knob up had something to do w/ pushing a dying cap over the edge? I say that because initially after I put everything back together my screen brightness was off (I probably jostled it while swapping power supply units) and was fiddling w/ the brightness just prior to the screen issues...