I've been working on a new game - Somnium Libertas. It's still very early, but most of the groundwork is in there now. Try it out and let me know what you think, and if it runs well on your PCs (and if the name is any good!).
Note that the spaceship sprites aren't mine, I'm just using them as placeholders. All the other art is mine. The panels and buttons etc aren't final yet.
(Edit: I uploaded a new version with my own sprite. All my own work now.)
You just need DirectX9 and a 64MB PS2.0 card or better to run it. It can run at anywhere from 640x480 to 2560x1600, higher if you add your desired res to the resolution.txt file that's included. Controls are listed on the main menu.
At the moment all you can do is fly your ships around and blow up asteroids for ore. Give it a try though!
20MB - http://dl.dropbox.com/u/22858108/Somnium%20Libertas.zip
It'll be a tactical RTS similar to Homeworld or Nexus, with upgrades, research, individuals etc.