System Monitor shows your CPU core usage (supporting up to 32 cores) and RAM usage (physical, page file and full, includes virtual). It also displays all cores and RAM usage history and cores temperatures. Supports multi CPU systems.
Macgo Free Mac Media Player is the best all-in-one free media player for Mac OS X in the world. It can play HD movies on iPhone, iPad, and iPod touch for free. It can support all media formats with high quality.