Few ideas straight from my head, just general stuff:

-Good quality stuff ! At least for me, it is hard to find other than Chinese crap locally
-Fine small diamond files; 200-1000 grit
-Small pliers, alot smaller than what Lowes or ACE hardware have I say again good quality !
-Regular small metal files, flat 45 & 90 degrees + round different sizes
-Sanding paper
-Checkering line files 20, 25, 30 and 40 lpi
-Checkering files 60 and 90 degrees
-Punches, for roll pin and flat head, starting from at least .05" or smaller if possible - I say again, good quality
-Dremel bits ! Specially cutting wheels, sanding wheels, grinding stones and LOTS of small polishing wheels. Kinda polishing stuff; diamond, felt ready-to-use etc. Do not know what they are called, but "black" diamond wheels for Dremel !

I have tons of ideas about (for example) 1911 tools, but I guess there are not too many guys in Colorado who want to get 1911 sear engagement microscope right now...