Hey guys,
I have a gig in 9 days, I need to learn an instrumental track, something not too hard but not that simple either. I'm a very slow learner, so please go easy on me!!!! Thanks!
Since you didn't specify a genre, Orion by MetallicA might be a good starting point, given your profile picture. The rhythm guitar track is not too hard.
You didn't specify a genre so I'll give you some songs that were on my old instrumental band's set lists:

Dee - Randy Rhoads (on Ozzy Osbourne's 'Blizzard of Oz')
YYZ - Rush
Moby Dick - Led Zeppelin
Honeysuckle Rose
Walk Don't Run
Wipe Out
Always With You Always With Me - Joe Satriani
The Call of Ktulu - Metallica
Jessica - Allman Brothers Band
King of the Hill Theme Song
The Simpson's Theme Song
Frankenstein - Edgar Winter Band
Signe - Eric Clapton
Fender American Vintage '62 Stratocaster
Gibson Les Paul Custom
TC Electronic Polytune
Danelectro Blue Paisley
EHX Big Muff Pi w/ Tone Wicker
Dunlop Crybaby
EHX Deluxe Memory Boy
Egnater Tweaker

Quote by Jackal58
Yer pretty fly for a Canadian.
jeff beck - cause we've ended as lovers
My Gear
-Gibson Les Paul Studio
-Ibanez "lawsuit" Les Paul
-Ibanez S470
-PRS SE Custom

Marshall TSL100
Marshall 1960a cab

Dunlop 535q wah
Visual Sound Liquid Chorus

Joe Satriani - Starry Night
"Well, yeah, sometimes I get a little too creative."
~Bruce Dickinson~

"Various equipments"
Ten Words - Satriani
Fleet of MiJ Ibanez
Couple of Balls
Peavey & EVH Wolfgangs
Fender HM Strat
Kemper KPA
5150 III 50w & cabs
Always With Me, Always With You - if done right, is amazing.

Basically any satch song.

Ytse Jam or, if your are very technically proficient, Stream Of Consciousness.
Where's Waldo?
Quote by kennethdave
Joe Satriani - Starry Night

This tune came to mind as soon as I read the first post.