I guess since I got a mention in the top post here I should throw up a few pictures of my almost-2-year old getting his gaming on...
Rocking the VCS...
...and enjoying himself.
This was my wallpaper for a long time.
Trying to choose a game...
...don't step on Radiant Silvergun!
This is easily his favorite arcade stick (probably because of the size and colors). He's not much for classic gamepads, but he will move the d-pad or hit a button while playing NES games (I usually control the other half of the pad). He does like dual analogs, though.
I also inadvertently captured some video of him getting his first PSN trophy...he was playing with flOw since you just need to move the controller around and apparently there's some trophy for just kind of chilling out. He unlocked it.
He also loves sit down arcade racers, and we try to hit one up whenever we get the chance. At home he plays lots of Saturn racing games with the Saturn racing wheel (I rubber-band the gas button down and put him on an oval track). The kid is a natural.
