One of my future home projects.... had all of these before, but lost em... so posting them here.  I know Admin aka Don was interested in this.

DIY directions:

www.tmsoft.com/article-arcade.htm

archive.gamespy.com/hardware/may03/arcade/

www.xgaming.com/byoarcade.shtml

Video on building one for under $100:

www.hak5.org/archives/50

Materials:

www.xgaming.com/index.shtml

Check out the news article on front page regarding a new Arcade system with a 29" monitor.  Talked to the owner of the company which is about an hour away from where I live.  I have some pictures to update the news release with... and plan on visiting the company and writing up an article on their business.