Most of this I found on Monte Cook’s site, under his DMing advice. There’s some good thought– and the serendipity of his group being large (7 vs. our 6) made some of his articles very appropriate.
Dealing with large groups (his is a 7 person group)– it’s a three parter. Part One, Part Two, Part Three
50 magic items, detailed. A short history and some game stats for each; should be cool. A free download on RPGNow.
Treasure Cards is an interesting idea. Instead of having equipment written on a sheet, keep index cards instead. It makes it easier to loan (just hand over the card), and other useful benefits. (Like it’s especially good for single use items that you otherwise forget.)
Damage reduction, a house rule to solve some problems he has with “boring plusses” and “golf-bag of weapons” issues.
An article on equipping NPCs w/ Magic Items. Mostly demonstrates the flexibility of the system, and how tinkering’s quite reasonable.
Hope they prove useful.