if you want the best in music, delivered to you in deliscious, non-commercial helpings, I really can't think of anything better than KEXP. It's a local station here in Seattle, but is the most listened to station in the world. It plays EVERYTHING. Much of what you have listed, but much more stuff that will broaden your horizons to incredible new worlds of music!
http://www.kexp.org
I'll grant, it may not be as hard as you'd like all the time... but if you listed to it during different times of the day, or check out the archives, you're bound to find stuff that blows you away... and the DJs are SO COOL, you can call them up anytime, chat, and they'll suggest great music for you...
oh... and if you're interested in more electronic music... and you seem to like it really hard with melody..
http://philosomatika.com