Hello AKFortyWAR,
You might want to try my mod Heavy Nova 2.
http://letosilvermane.googlepages.com/home
I have made a variety of changes from the vanilla game to improve resources.
Each player's home system starts with 3 metal and 3 crystal asteroids.
The home system asteroids are 50% more productive than normal. This balances out the high credits from the large starting population and home system tax bonus.
I doubled the extraction rate of all asteroids.
I more than tripled the refinery rate so they are worth building now.
I doubled the effectiveness of extraction technology from 5% to 10%.
I doubled the number of levels of population technology.
Finally, I increased the range of the slow, medium, and fast settings. While I don't play that way, a side-effect of a balanced mod is that is scales smoothly. If you play with the fast settings, you will be building very quickly and swimming in resources. Just beware, the AI has been improved as well and they may raise large fleets and crush you if you can't keep up.
Good luck,
Silvermane
Edit: I wrote a program that mods every planet, ship, module, and technology setting the properties to whatever I want; so changing them all and tuning them all is no big deal for me.