Is the date here true for live bitcoin and altcoin prices? i found this site: http://coinmarketprice.com
Its pretty easy to navigate i like it.
Are the list there true for market caps of the coins and are the live prices for bitcoin and other altcoins are latest data?

thanks
I don't think the prices are live and up to date.

Check this one out and compare them
http://bitcoincharts.com/markets/currency/USD.html

That's real time incl. BTCchina and other non-USD markets.

Well, if you need multi-coins prices, the USD price should be averaged somehow and you probably use the right tool to track them all.