MultiMiner
MultiMiner is a graphical application for crypto-coin mining on Windows, OS X and Linux. MultiMiner simplifies switching individual devices (GPUs, ASICs, FPGAs) between crypto-currencies such as Bitcoin and Litecoin.

MultiMiner uses the underlying mining engine (bfgminer) to detect available mining devices and then presents a user interface for selecting the coins you'd like to mine.
MultiMiner is free mining software that allows you to mine Bitcoin or Litecoin on multiple computer architectures.