A good Linux machine makes and excellent graphics workstation, there are lots of applications available - 3d modelling suites, bitmap painting programs, scanning software, OCR, you name it, and its probably been done.
 
 
 
Press me! 
 
Press me! 
 
Press me! 
Press me! 
 
 
Press me! Press me!
 
 These web pages designed by J.Snowdon 1998.  Some images taken from other sources.