It would be nice to be able to up the screen resolution and see more of the area around your ship, based on what resolution you were. It might affect balancing, but it would seem more like I was flying through space and not so cramped. And really, if people feel like they can see too much, they can always go to 800x600.
I also think that a creature made of antimatter, that had energy reflectant armor (no shields) and was immune to antimatter but was weak to impacts with normal matter, would be cool (so thermo might do a tiny bit of damage, blast would do more, kinetic would do most).