I found a copy of Phoenix Wright, Ace Attorney for cheap yesterday.   This game is so much fun!  You play the role of the rookie lawyer Phoenix Wright.  You have to investigate crime scenes, question people, and then cross-examine witnesses in court.  It's kind of like a choose-your-own-adventure detective novel.  The facial expressions on the witnesses can be hilarious at times, and the music is great, especially when you manage to unravel a witness' testimony.  The first case is pretty easy and fairly short, but it gets a lot harder (and longer) from there.  The prosecuting attorney can be downright tricky and sometimes what appears to be an obvious clue gets turned around and used against you.

Most memorable moment so far:  A witness gets so flustered on the stand he rips off his toupee and throws it in Wright's face.