I've wanted to do this for some time now. Counting down (in my opinion) the best Anime openings of all time.

1. Trigun - H.T

http://www.youtube.com/watch?v=NzHe4U5c5Oc

2. Cowboy Bebop - Tank!

http://www.youtube.com/watch?v=T6zDfxZ4NcE

3. Full Metal Alchemist - Ready, Steady, Go!

http://www.youtube.com/watch?v=rMDvps_q9qo

4. Death Note - The World and What's Up People (I'm including them both as one)

http://www.youtube.com/watch?v=uyexKF8YjDQ

5. Beck - Hit In America

http://www.youtube.com/watch?v=xClFjEe0SBw

6. Katekyo Hitman REBORN! - Funny, Sunny Day (All the Openings, actually)

http://www.youtube.com/watch?v=ocwEh1AWf0I

7. Azumanga Daioh -

http://www.youtube.com/watch?v=huWKSYUX5Fs

8. Naruto Shippudden - Sign

http://www.youtube.com/watch?v=lfaVgYd1Da8&feature=related

9. Code Geass - O2

http://www.youtube.com/watch?v=WW1ow8LNooQ

10. Soul Eater - Resonance

http://www.youtube.com/watch?v=WMK_xzkYM8s

Of course these are not all the ones I love but posting them all would take forever lol.