St. Pauli - I cannot tell you how much of DS7's conversation relates back to whatever he is playing on the computer most recently.  Lately it Civilazation 4 and some free Mario download we got over the weekend.    
 
 DS was in his last year of preschool (4 3/4 - 5 1/2) before he really LOVED playing with other kids.  He had a best friend that year, who we still miss.  
DD almost 4 is almost TOO social.  She is absolutely obsessed with all the older girls at preschool.  I'd actually take a number or letter obsession for her about now.