As a IS consulting firm, we would like to have our very own password cracking machine. Great.
Now, after some sketching and brain storming we concluded that GPU is the best way to go (contrary to CPU or rainbow tables). And the questions that we found hard to tackle was what is the best choice - can we buy just enough power from on-demand cloud service (amazon's is an immediate selection but if you have any recommendations, go ahead) or to buy ourselves a machine and build it with the appropriate hardware. btw, we are thinking on using oclHashcat-plus if it makes any difference.
Suggestions on how to settle the debate? Maybe some completely different approach?
Thanks in advance,