Rangers and Barbarians are going to be even better than usual, and Fighters are going to be even weaker than usual (which is okay, since anyone taking more than 2-4 levels of Fighter deserves to suffer).
Clerics will be weaker, while Druids will continue to rule the world. Consider giving Clerics another two skill points to make them feel better.
Light-armor classes include:
- Rogue
- Ranger
- Swashbuckler (icky, C:War)
- Scout (C:Adv)
- Bard
- Binder (ToM)
- Warlock (C:Arc)
- Spellthief (C:Adv)
- Truenamer (ToM)
- Warmage (C:Arc)
- Dragon Shaman (PHB II)
- Beguiler (PHB II)
- Battle Sorcerer (UA)
Sort-of light armor classes include:
- Barbarian (best in light armor for speed)
- Monk (no armor)
- Druid (no need for armor after level 5)
Now, I like the idea of low-magic meaning all magical PCs are wierdos, there are no colleges of magic, and magic powers are generally inherent rather than learned. So that's the direction I'm going to take when considering classes.
The non-magical classes I like for this setting would be:
- Fighter (variant that gets +2 skill points/level, and has Tumble, Sense Motive and Spot)
- Barbarian
- Rogue
- Scout
The magical classes would be:
- Ranger
- Spellthief (variant that gets +2 skill points/level, since his main schtick is nerfed)
- Bard
- Battle Sorcerer but renamed "Elf Paragon" (allowed to choose ANY spell from Sorc/Wiz, Cleric or Druid list)
- Binder
- Warlock
- Truenamer
- Dragon Shaman
None of these guys has tame, trustworthy magic. They all pretty much hate each other (except for Bards, whom everyone likes, but no-one respects).
Most magic items would be created by Warlocks rather than Wizards and/or Clerics, because there are no Wizards, Clerics or Druids.
Hope this is helpful.
Cheers, -- N