Recommended female vocalists?


Looking for female vocalists w/ ultra soothing voices - something that could relax me at the end of a hard day.

To give a bit of reference my favorites are:

Sarah McLaughlin - Surfacing: I Love You, Do What You Have To Do, Angel, Full of Grace. Fumbling Towards Ecstacy: Wait, Good Enough, Elsewhere, Ice, Hold On, Ice Cream, Fear.

Enya
Everything.

Tori Amos
Entire Little Earthquakes album. Some of her other music tends to get on my nerves a bit, though.

I'm sure I'm missing out on a ton of artists. Who else do I need to check out? If it's not too much trouble please give specific albums and songs.

Thanks in advance.

-Kevin
chexxchexx
1. Patricia Barber; Companion, Cafe Blue, or Premonition
2. Eva Cassidy; Live at Blues Alley
3. Christy Baron; Steppin'
4. Janis Ian; Breaking Silence
5. Sara K.; No Cover
6. Dave's True Story; Sex without Bodies
7. Jennifer Warnes; Famous Blue Raincoat
8. Amanda McBroom; Growing up in Hollywood Town
9. Rebecca Pidgeon; the Raven
10. Jacintha; Autumn Leaves (OUTSTANDING!!)
11. Nancy Bryan; Neon Angel
12. Lori Lieberman; Home of Whispers

These are not really in any particular order. Most are jazz vocalists, most are also audiophile recordings to some degree or another (Chesky, Pope, Sheffield, Premonition).
Liz Phair, Lisa Loeb - Firecracker (great 3d+ recording but mostly binkie music, alas), Basia, Billie Holiday
A few faves:
Patricia Barber
Margo Timmins
Diana Krall
Cassandra Wilson
Jane Monheit
Joni Mitchell
These are just off the top of my head and in no particular order.
My additions to a lot of good folks already mentioned:

Rebecca Gates, 'Ruby Series' more of an extended EP (7 songs) but well worth it
The Innocence Mission, 'glow'
Everything But the Girl, 'Walking Wounded,' electronic, but Tracey Thorn's voice is amazing

And though this isn't all female vocals, the soundtrack to the movie, 'First Love, Last Rites' has great collaborations between Shudder to Think and Liz Phair, Nina Persson (Cardigans), and Angela McCluskey (Wild Colonials).