If you didn't get a chance to attend GDC this year and wanted to hear CliffyB's (he's currently working on Gears of War
for the 360 and is one of the gentlemen behind the Unreal and Unreal Tournament franchises) speech, he's posted an MP3 of it up on his blog
. It's about an hour long and covers his thoughts on game designs and what does and doesn't work in games. It's a great listen as it shows some insight into what makes games great as he debunks some common game myths like "Graphics don't matter" and a few others.