Psion,
I thought I was the only guy to get suckered by Starshield. I bagged the project when I read Hickman's book The Immortals where the author accidently reveals his opinion of artisic works by the unschooled ... which is excatly what he was pretending to solicit for SH!
Anyway ...
My homebrew site is in my .sig. As a caveat, I'll warn you that I'm thinking about publishing it so this message could be considered a little spammy. However, with the setting I hoped to address problems I saw in a lot of other campaign worlds:
1) The "you-can-do-ANYTHING-you-want!" issue. Of course I can do anything I want. I'm playing an RPG! But I see a lot of generic fantasy worlds that basically sit there and give nothing for a GM to fall back on. Hey, Dragonlance at least gave you draconians to kill. If the GM has to spend a lot of time making adventures, or if any generic fantasy adventure can be dropped in the world then the setting really hasn't done it's job.
2) Consistency. If there is an evil wizard there should be a reason he just doesn't wack the players. If there is a powerful good guy wizard there should be a reason he doesn't just lob a fireball at the orc camp instead of looking for adventurers to do it for him. If there are lots of dragons there should be a reason why they haven't gobbled everyone up. Players will ask these questions sooner or later. The setting shouldn't leave the GM saying "because that's the way things are, OK?"
3) Balance. If there is a new race or prestige class it should work with the setting AND not be overpowered. I've seen d20 settings where a fantasy race gets attribute bonuses with no corresponding penalties. Apparently, I'm supposed to make sure my group is 100% comprised of master role-players. The reality is that every gaming group has some role-players, some powergamers, and some casual gamers. So any added material should be involving, blanced, and interesting. Of the three, I've noticed that balance is the first to go.
But as I said, my solutions to these problems can be found within my link.