Just as the title says, post the coolest ones you've heard.

I love fighting music, like the ones in Ninja Assassin.

2 of my favorites;

A few songs with notable beats:

Guns Are Drawn - The Roots
All I Know - DJ Jazzy Jeff (ft. C.L. Smooth)
Daydreamin' - Lupe Fiasco

That's Rap and stuff, though. If you're not interested in that, look up Justice. They make some pretty nice songs, and their genre is Electronica. Listen to the final version of Planisphere, I have a feeling you will enjoy it.

Well i dont feel like posting a vid so ill suggest some songs:

Versailles - Sympathia/Prince
Muse
Gazette - Guren/Taion/Reila
Galneryus - Silent revelation

And ofcourse Incubus!

Flying Lotus - Camel


J Dilla - So Far To Go


Delinquent Habits - Tres Delinquentes

As for instrumentals...

65daysofstatic
And So I Watch You From Afar
Explosions in the Sky
Make Say Do Think

The drum beat in Styrofoam Boots about halfway into the song is amazing.

Electoronic/Dubstep instrumentals are my favorite.
http://www.youtube.com/watch?v=5-RsMNH6EaA&feature=related Like this

little green bag, really cool tune

also anything by tito and tarantula usually has a cool riff or beat to it

http://www.youtube.com/watch?v=cG0qv9s0VNo

and them crooked vultures usually do a really really cool beat, but no instrumentals, although you can just ignore the vocals half the time because their not that prominent

http://www.youtube.com/watch?v=S7_vH3H8LPI

http://www.youtube.com/watch?v=pGp97OVybUM

instrumentals wise joe satriani makes some decent stuff

[SWF="http://www.youtube.com/watch/v/8hAYEcj_LCw"]height=264 width=425[/SWF]

More J Dilla:

[SWF="http://www.youtube.com/watch/v/tFog_9X43EQ"]height=264 width=425[/SWF]

[SWF="http://www.youtube.com/watch/v/ibRkICZRJCw"]height=264 width=425[/SWF]

This one's not an instrumental, but the beat is so bizarre and awesome that I had to include it:

[SWF="http://www.youtube.com/watch/v/1EsGwLFchRg"]height=264 width=425[/SWF]

Jesus it's fat jon what more do you need?
http://www.youtube.com/watch?v=R95LFRi9yq4&playnext_from=TL&videos=MlciNL0TXHs&feature=grec

Nujabes, my favorite track of his.---- World without words.
http://www.youtube.com/watch?v=TuKcl8e_7J0&playnext_from=TL&videos=2GGklxSC7RQ

If I had a second favorite of his it's this definately.----- Araurian dance.
http://www.youtube.com/watch?v=TUwRGPxCG_Y&feature=related

My favorite tsuchie track, it's was hard to narrow it all down to one.----Just forget
http://www.youtube.com/watch?v=pJARRMOchdE

Posting it for kicks.
http://www.youtube.com/watch?v=uF_76cGyg0c

Edit; I decided not to put the video boxes up to not lag slow computers anymore than they already do. Also these are just a few, I haven't really decided on the "coolest" yet, but I'm positive these are all good.

It is beyond any doubt Green Onions.

Followed up closely by the Peter Gunn Theme.