Definately Lily for your girls and Kate is a great middle name too, lol! (My DD's name)
Molly is gorgeous too.

I like Hamish for a boy.

Other names for gilrs we had were:

Hannah
Caitlyn

M/N's: Rose, Jane, Mae, Anne

Other names for boys we had were:

Noah
Callum
Lachlan

M/N's: Jake, Luke, Scott, Mark

HTH!