Song intros that really grab you? ?

Opalchip, great call. A single memorable chord. At the other end of the spectrum, I'd nominate the improvised tenor sax and drum intro to Steely Dan's "Everything Must Go." Glorious playing, and really contributes to the meaning of the song (those guys are brilliant).

On a different note, the intro to Curtis Mayfield's "Pusherman." That is _so_ cool.

"Darkness/Earth in Search of a Sun" - from First Seven Days by Jan Hammer.

"Toccata and Fugue in D Minor" Bach. played by E. Power Biggs

Beethoven's 5th has been grabbing people for several hundred years.

The opening riffs to California Girls and Long Cool Woman in a Black Dress

Some really great tunes listed above. Here's what i thought of off of the top of my head in no specific order. You know what they are as soon as you hear the opening line...

Taxman by The Beatles

Angel of Death by Slayer

Allegro Molto by Nikolai Rimsky-Korsakov

Got The Time by Joe Jackson

Alabama Song ( Whisky Bar ) by The Doors

Brand New Cadillac / London Calling by The Clash

Spill The Wine by Eric Burdon & War

Ace of Spades by Motorhead

Smokin' In The Boys Room by Brownsville Station

Mars: Bringer of War by Gustav Holst

All The Young Dudes by Mott The Hoople

12XU by Wire

Rock & Roll Hoochie Koo by Rick Derringer ( best version by Johnny Winter And on a live disc. Derringer was Johnny's "back-up" guitarist )

Radio Radio by Elvis Costello

Ziggy Stardust / Fame by David Bowie

PS... Reading threads like this makes me want to bust out a ton of different albums : )