Generally, yes. If implied volatility is the same for all of the expirations, than the longest expiration contract is going to be the most expensive. You can look at options chains on yahoo finance to get an idea of how price varies with time until expiration (Natebergs books have charts showing this... you can probably find them online).
I'm going to bow out of this conversation. You really should do some independant research though... the answers to all of your questions can easily be found on investopedia.