The nerd culture website www.nerdlives.com has an author writing for their RPG page who is doing a home brewed rules column. I've implimented his rules into my game, and I especially enjoy the rules for libraries and books.
Thats the rules for libraries and books.
Here is the alternative magic item rules:
The nice thing is he also encourages you to send in your own homebrewed rules and if they're good he'll post them.