Rpyalty Free Music

Let me know if you guys find any good royalty free music. I realize an investment might need to be made but I am willing to make it as long as it is good and versatile. I would like some rock type music you might imagine apple using or something. Here is one I found:

http://www.royaltyfreemusic.com/atomic_pop.html

Let me know if you find something else or better. If we can find something really nice, than I will purchase it and let you all use it.

I really like the first 2 tracks from that link. They remind me of the demo reels you put together using the Sigur Ros song "Hoppipolla" (I believe)- very motivational.

This style of music could help to make the potential client feel as if RNG35 has a breakthrough product that everyone can now afford/use etc. (chessy???? Maybe a littel.)
I have always played around with Sony Acid and royalty free loops to make my own documentary background music, but I think it's worth spending $50-100 to find a good tune to use. I'll go through my home-made library and see if I can find something usefull as well.

If you guys are not opposed to it, do you all want to pitch in and I can make it available for download?