I have found that two readily available ingredients that can make you a lot of compost fast is straw and green grass clippings, but there are so many other things, but to make a lot, you need to use a lot of organic material.

When buying an office computer, look for lots of RAM and GHz Power. Get Dual Core if you can (Quad Core would be even better). Dual/Quad core will allow you to do multiple things at once without slowing other things down. Don't worry about graphics car...