You should get people from the early days of IC… would be fun to have a podcast with Aderack. and Christian Nutt was always fun on the earlier iteration of the podcast.
i always enjoyed Vito, too… and the episodes with Brent Porter and Michael Kerwin.
I know Tim is friends with GrandPooBear, might be interesting to have a professional game player instead of the usual games journalism/industry people.
a lot of the people Tim worked with at Kotaku could be good guests too… Gita Jackson or Jason Schrier, for example.
Could you get people active in the Japanese gaming industry at all? That could be really neat.