Welcome, Rayn! I like quite a few artists on your list (Regina Spektor, Ani, and NMH in particular!) so I'll say a rather nice list of artists.
This place is great for music recommendations - you can also find some good stuff by checking out these threads:
What Are You Listening To Right Now II
Albums You're Digging II
Last Album You Bought Or Downloaded
And the
Member Journals are great sources of new music as well.
Again, welcome! Hope you stick around.