Low-Magic Campaign?

[Matthew]

I'm trying to put together a campaign that puts more emphasis on the character build and racial and class abilities than on spells and magic items, so I'd like to build a campaign with a low-magic variant. The problem is I'm not sure -exactly- how to do this. My best idea right now is to restrict all primary spellcasting classes except for the Adept and Cloistered Cleric (the latter of which is still pretty darn powerful, but band-aid boxes are easily more important to party survival than wizards), and to increase the price of magic items, maybe by as much as 50%. I'm worried, though, that making magical items harder to come by just makes spellcasters that much better than physical classes again (not that I'm really trying to bridge the balance gap, but it is an issue).

Is there a better way to do this, or am I doing alright as a quick and dirty bit of campaign flavor?

Just reduce the number of Spell Slots and Spells avaiable to Spell Casters.