I DID it!
Sincere thanks for all your help, guys!
I bought a .45 ACP/Auto-Rim "Classic" Lee Loader, and on Friday I made my first 18 rounds

(well, actually my first 20, but for the initial 2 cartridges I seated the bullets
wayyy too deep into the brass

).....
Anyhow 
, I used the lil yellow "Lee dipper" (so no worries about double-charges - just one scoop!) and the process went like clockwork - I managed to "build" 18 usable cartridges total and get them fitted into those "moon clips"....
My "rate of production" averaged about 6 rounds in 15 minutes including interruptions and sundry learning curves (so, about 2 1/2 minutes a cartridge) which, while plenty "fast enough" to suit me (I was generally just taking my time), is not "quite" as fast as this guy:
[youtube]UeEl9wZyabc[/youtube]
Then again, he was loading for rifle, not pistol, so I guess that'll be my excuse!