The VIX is a well-thought-out, robust calculation that charts volatility for you. It is a weighted average of all options with a bid greater than zero. The CBOE keeps volatility indexes on a few other things as well. Other than that - as the saying goes - if you want it done right you'll have to do it yourself. A relatively easy way to do so is to get a set of Excel add-in functions such as Hoadley and set it up that way.
The VIX uses minutes-to-expiration in its calculations. For me, days to expiration is good enough. Unless you're trading very close to expiration, I don't see how dividing the day into minutes makes a meaningful difference. All depends on what you're doing.
thanks fr the replies, i do watch the vix, but it would be nice to see a real time volitily chart for a certain option, im sure the cheaters r using them.