You can make a lot of things using LEGO & that includes a PC case. This LEGO PC case is powered by NVDIA Epia PD 1GHz processor & comes with NVIDIA 6200 PCI graphics card, 80GB hard drive, 1GB RAM, DVD drive & 

This LEGO brick shaped MP3 player is from Homade. Those nips will work as the playback buttons. It has no LCD & internal memory. What it does have is a empty micro SD slot that support up to 2GB & a jack for the headphones & a charging socket.