In case you missed it, here's the two ustream clips. Part one is the very beginning stages of the game, whereas Part two is set in the latter portion of the game. The two developers explain many features and answer a lot of questions from the ustream chat throughout the show, definitely worth watching!
 
Part 1:
http://www.ustream.tv/recorded/9553042

Looks like I know what I will be watching  later... Sigh.. It isn't released on steam till the 24th for me...The anticipation is killing me ... 

I only watched the first one and it was pretty hard to sit through. They had some technical issues and the guy playing takes forever to do anything and stops whatever he is doing anytime a question gets asked. Maybe the second one is better but I think you'll get just as much out of the 13 min video IGN has up.

I had been avoiding coverage of Civ 5 up until now, watching those videos just convinced me to pre-order.  

oh man why did you do this to me...must have civ...must have civ....

Pre-ordered, watching vid. All pumped up and ready to go lose hours and hours.

So I think the lesson here is always choose to be Napoleon, so you don't have to deal with that bastard Napoleon.

" So I think the lesson here is always choose to be Napoleon, so you don't have to deal with that bastard Napoleon. "

Ohhh, Citadel.... 
 
I really like that diplomacy screen 

I'm far too excited about Civ V, it's unreasonable. Anyone know of any other videos like this one? I tried watching the Gamespot one but the presenter guy was so miserable it got irritating.