I brush and comb my cats a lot, but there is still cat hair every where - what else can I do?
Cheap Check out a new laptop equipped with ATI 5650, or Asus G series for a used/refurbished. Their price are around 400 - 500 pounds.
You can Try for Samsung. It is coming with new RV series with HD facility and at very reasonable price.
I had a similar assignment. I made a figure out of random recycled materials that is dragging trash into a natural environment (leaves, sticks, etc). You do not even have to make something that distinct. It can be an abstract composition. As long as it is made of recycled materials, it probably does not matter.
