[Jbrochu]

All you need to do this yourself is a very basic understanding of a spreadsheet application like Excel, and one of those free poker probability programs like Pokerstove or Poker calculator.

If you want to calculate $EV as well as chip EV, then you also need one of the free ICM calculators.

See the pinned FAQ thread under "1-table Tournaments" for more information.

Regarding costs, people pay $79 for SnG Power Tools, which makes it a lot easier from what I understand. I never tried it though.