Ok, I'll start with what I've been into most recently.
Dr. Dog
http://www.youtube.com/watch?v=hOB4xREUk_8
http://www.youtube.com/watch?v=9_4_By9NJOc
The Strokes
http://www.youtube.com/watch?v=_l09H-3zzgA
http://www.youtube.com/watch?v=6ux2GZ1OF3w
And now, two of my favorites.
Band of Horses
http://www.youtube.com/watch?v=zEGGCKF5OTA
http://www.youtube.com/watch?v=jPHXj_FbqgA
Brand New
http://www.youtube.com/watch?v=1ZQTwkcX4Ik
http://www.youtube.com/watch?v=LGKsnNaSPm0
I know it's a lot, sorry, but I will leave you with my ring tone.
Yasunori Mitsuda (Frog's Theme)
http://www.youtube.com/watch?v=fMzkUriqXvs