PowerPoint can function for Jeopardy and Concentration Type games.
Templates for a variety of games are located at the following sites and are free or relatively cheap.


Teachnet.com http://www.teachnet.com/lesson/misc/winnergame022500.html

Ready,Set, Play
http://www.kimpearson.org/fetcgtlinks.html

Parade of Games in PowerPoint - Includes a wide variety of games using a PPT template including buzzword bingo, Trivia, Triples. The site also links to other game pages.