Eternium/adamantium weapons (2-handers and halbers in particular) can be found occasionally in the SMC. I have no idea why.
Spellbooks are easy. All books are DL:1, so you can start/find wish, teleport, acid ball, whatever, in any area.
I played a game recently where I equipped a randomly dropped bronze amulet in some low level area, and was extremely surprised when I was 1) killed by a door trap and 2) revived by my random unIDed AoLS.
I've found bracers of war in the UD before, and have pickpocketed Preserver in the VD. That aside, the things that normally make me happy low level are finding a bloody dagger or an orcish spear of devastation.
Hoping to win with every class, doomed. Archer, Barbarian, Bard, Beastfighter, Druid, Elementalist, Farmer, Fighter, Monk, and ULE Priest down.