do post work before you split, or else you're going to have to do the work on each track exactly the same, which might be hard to remember. plus, i've heard doing post work after you split could introduce sbe's.
as for tracking the show. i get rid of the dead space at the beginning and cut so the last number is on 01, so like 02.01 (where 02 is the second, and 01 is the sector) from then on, always cut on the 01 sector, and all of your songs will be perfect and should look like 04:54.00 (where 04 is the minute, 54 the second, and 00 the sectors)
before i put the master wav file in cd wav i name it "bandname2006-01-26d1t" that way when i make the splits in cd wav, it'll automatically name the file properly by adding the number at the end. (does that make sense)
then i save as a flac and rename the files in tag&rename, but you could save as a wav file, and then write the tags in flac frontend when you convert the wav to flac.
as for archiving, i leave the master wav file, also make a .cue sheet for it in cd wav, so if i need to cut it again in the future, its already done. then i'll save a copy of the 24bit flacs, the 16bit flacs, and usually vbr mp3s if i want the recording on my mp3 player.
I'll do that for all the bands that played that night, and put the whole night on its own dvd-r and make an info sheet telling what i ran for the night, the bands i taped, and what settings i used, where the show was at, etc and put that in the cd case.