Well an old friend gave me an old tron cabinet, really just a shell. From there I had to clean it out, take off the old beat up side art and other art work, search for nice looking tron parts (ebay). Once I had all the parts I started to look for the PC parts I need, keyboard encoder, monitor, buttons, fans, that stuff. Once I had everything I need it was time to do some wood working, just making sure everything fit right and stuff, configuring the computer and what not. Nothing is really that hard to just very time consuming. Anyways not sure if any of that made sences so here are some very helpful links:

http://www.projectarcade.com/sample.html (!!!Buy the book!!!)
http://www.mameworld.net/
http://www.ultimarc.com/
http://www.phoenixarcade.com/art.htm
http://www.t-molding.com/cart/customer/home.php