There are video game fans worldwide with fond memories of the original 1993 XCOM game, myself included. Its turn-based ground combat system, research resource management, and simple customization captured imaginations. I spent plenty of nights naming new recruits after friends only to send them out into the field against the alien threat.
The XCOM series floundered badly since then, but it looks like Firaxis Games (makers of Civilization IV and V) seem to be getting it back on track. Though it'll be also released for the PS3 and the Xbox 360, this might be one that I'll have to pick up for the PC... for old times sake :)