is it possible to build a machine just for rendering? like a render farm?? if so how can i go about it.
For individuals and companies alike, rendering is the best application for your previous latest/greatest machines, and the ones before them. You might be frustrated modeling with a dual 400mhz system these days, but how many hours of rendering could it save you?
Network rendering and clustering are two advanced options, but there's an easy way to get the most out of your machines otherwise with a bit of forethought.
"Mojo-workin" network rendering isn't hard; time your various cpus' relative rendering speed and set them to render appropriate percentages of an animation sequence (with a few frames of overlap perhaps if using motion blur or other special effects). A mapped network drive letter for projects and renders makes things easy using this method.