thank you, brad, but just let me add the

SIXTH EXCEPTION in your weapon list for the benefit of new players:

DROP ONLY WEAPONS

these are weapons you can find in killed enemies.

there's a dex 4 nailgun pistol and a dex 5 street rifle, obtainable from mutants (as well as from shops) and varying in quality from poor to good, some even may have up to 2 slots.

more important are drop-only weapons from dungeon boss mobs:

TL/STR 90 Storm Laser Cannon (from Gaia Mine)
TL/STR 90 Judgement Day Rocket Launcher (from wasteland storages)
TL/PSI 90 Chaos Queen Flame Avalanche Spell (from Chaos Caves near canyon)
TL/STR 107 energy soulblade (from worm tunnels)

all drop-only weapons come in very high quality and 0-5 slots. since roaming the caves is a favourite leisure time activity in NC for many players, you might find them at a reasonable price.