What can you give me. Needs to be expandable. It's for ppc and primecoin
I posted a budget / entry level DDR3 build on the digitalcoin forum: http://digitalcoin.co/forums/index.php/topic,101.msg898.html#msg898
The price of these components is also dropping and you can increase the graphics mining capabilities with: SAPPHIRE R7 250 2GB DDR3 WITH BOOST.
This build was designed with power saving in mind though, whilst being a multi-mining / quality PC also.
You would be better off going with a USB ASIC (i.e. as many cheap Block Eruptors as you can) for mining PPC (peercoin) and not really bothering with graphic card mining.
However, if you need a quality low-end budget PC to run them from that can also mine some other scrypt coins and a few additional PPC then thats not a bad build. You would get a fair amount of Primecoin with CPU mining too, if properly overclocked that Trinity Quad Core can reach 5GHz CPU mining with air cooling.
Best way is to shop around for cheap components.
There is always something to be said for using quality architecture for overclocking, even at budget / entry level.
As you have free electricity you have many options for a better build.
