Determining proper order price on BTCe
The API call you are looking for is the market depth:

https://btc-e.com/api/2/btc_usd/depth

There are also calls for LTC/BTC

https://btc-e.com/api/2/ltc_btc/depth

and LTC/USD

https://btc-e.com/api/2/ltc_usd/depth

All of the above return JSON data including both ASKS and BIDS