nissangaw

hi.. i need to make an entire wall... 250 leds... (50 by 50) i need to know.. 1) how to make them light up in different designs. the simplest form 2) how to control the lights... as in.. if i wanna make it controllable.. as in plug into the pc and operate using sum software like code composer or sumthin. to write words on the wall.. or to make it light up in visualizations for music. please feel free to give me all ur ideas! thanks. nissi.