The coin just launched, Phenixcoin. Sounds a bit cheesy at first but when you look into it, they have a really nice initial setup. They have services launching with the coin like phenixpoker where you can play poker with the coins you mine. Then of course you can transform those coins into other coins of your choosing on these forums. Another service they have (in near future) is an exchange service that works directly with mtgox :O
So yeah, I started mining these, being that its new, I will store up a bunch easily at first and hold on to them, because I am for sure that this will be a contender with litecoin in the near future. litecoin doesn't even have services that launched with its release. get in while you can!
There are so many coins that already exist
http://dustcoin.com/mining its a bit difficult to see which ones are gonna go boom or gonna go poof. I just mine litecoin.