I agree, Sienna and Luca are gorgeous names.
Ooooh, Lauren, I love your names too (I really like Archer!) though sorry, but Delilah makes me think of that old ad with the jingle, 'why, why, why, Delilah' LOL! Its a lovely name though - goes really well with Noah. (Very ancient, beautiful biblical names.)
If we had a boy today, I assume we'd still call him Levi (DH's choice - I don't mind it but he LOVES it, so it works for me. But we haven't spoken about it, so its only an assumption.) If I had a girl today I'd call her Phoebe for sure. I loved Phoebe when I was pg too, but DH preferred Natalie... plus, I still think we are clever for having a Natalie at Christmas time
For boys names, I really like Ty, and I like Tim as well.