Try out my Recofigured StarCraft Maps. The maps are not made by me, they are the maps which everyone has in their Starcraft/maps directory. But these ones have a lot more minrals on them. (i didn't changed the numer of minerals, i just increased the quantity of resources every minral or vespien geyser has).
Now you can make enjoy destroing your enemys and get rich while doing so ! :)