Picked up a new cassette for my spare bike, took off the old one, made a mental note to clean the poor thing, put on the new cassette, spun the pedals and watched the 8 spd chain run at a 45 degree angle over the sprocket to a 9-spd derailleur on a bent hanger to flick wildly between gears. I guess that wasn't the quick solution I'd been hoping for =(
Then, instead of cleaning a months' worth of dust off my beautiful regular bike, I had a nanna nap. Tomorrow, reconnect front brake, scrub 2 x bikes, scrounge new derailleur... and then to work on my side project - a tandem bike which needs a gear cable change!
Went on my first ride on the new frame - which is exactly the same as the old one but a different colour (warranty replacement). Looks and feels like a new bike even with all my old running gear on it. Happy Chap.