How To install Neverwinter Nights on Linux

Joe Barr writes " As soon as I saw the news that BioWare released a beta of a Linux client for its popular and successful Neverwinter Nights title, I downloaded the beta (registration required) and went shopping for the prerequisite retail Windows version of the game. Before I proceed, let me offer this brief warning: Neverwinter Nights is the mother of all timesinks. Do not follow my path unless you have nothing important you want to get done for the next week or so."