My oldest's name is Declan. It's old Irish - an 11th century saint.
I know what you mean about the Aidens. In Declan's preschool class, there are only six boys and there is an Aiden, a Caden, a Jayden, and a Hayden! It must be a nightmare for his teachers!
I have an Aidan, Kaden, and Hayden in my class, but the last two are girls. Last year I had Preston that was a girl too, and Hayden that was a boy.
These have been mentioned but Lucas and Seth would be my choices for another boy. I have a Nathan and have regretted it from his first day at gymboree. 6 boys.. 4 Nate or Nathan.. ugh..