When starting out with mining for Bitcoin or Litecoin it can be a little overwhelming to pick out and configure the software to use when mining. On top of that, many mining software packages are geared toward Windows and Linux. Getting some miners to work on Mac OS X can require manually compiling, installing development tools on your Mac, and so on. With that said, however, there is one mining software package that is built specifically for Mac OS X and is extremely easy to configure as use: Asteroid.
Asteroid is by far the easiest Bitcoin and Litecoin mining application for Mac OS X. It is a front-end for cgminer and works wonderfully for mining crypto-coins with AMD/ATI GPU, ASIC, and FPGA devices. As you can see in the preceding screenshot, it works with my Bitfury Red Fury, Butterfly Labs BitForce Little Single, ASICMiner Block Erupter, and AntMiner U1 devices. It has configuration options specifically for Bitcoin and Litecoin, however, it can be used to mine any compatible SHA256 or Scrypt coins.
Note: Asteroid and cgminer do work with Nvidia-based GPUs, however, other miners, such as cudaMinder, do so more efficiently. cudaMiner is not currently included with Asteroid (as of version 0.9.5), but may be in the future.
You can download Asteroid from: http://www.asteroidapp.com/download.php
Remember that it is possible to Buy Bitcoin with PayPal. If you are mining on Mac OS X, I highly recommend Asteroid. In addition, it is important to keep an eye on the temperatures for your Mac when you mine. I recommend Temperature Gauge for Mac (http://www.tunabellysoftware.com/temperature_gauge/).