In my musical collection I have a lot of songs. You didn't say what kind of generes you like so be sure to know most of all of these are rock.
Audioslave - Out of Exile CD
It has fast guitar solos in a lot of songs but also has it's handful of "Wow that sounds cool" songs. Like "Be Yourself"
Rage Against the Machine - Any Album (Except Renegades)
RATM has the same band members as Audioslave, although different singer. It has more of a Rap sound to it but it's all political. Nothing like "Wahh african biznatch ass whore i love my money betch" crap that you get with other rap. With the exception of the Renegade CD which is 100% covers. It's great music and if you try to ignore the fact that most of the lyrics from Evil Empire album don't really make any sense then it's good music
QUOTE(Zack De La Rocha)
I'm the Malibro Man
Gorillaz - Demon Days
All the tracks on this album is good to listen to when you're in the car. It's like backround music, but it's not. Listen to some samples of the songs on Itunes or something and you'll see what I mean.
Allman Brothers - At Fillmoore East
It's a live album but you wouldn't be able to tell it without someone mentioning it to you. It's nice music, sort of blues and rock combonation, but none the less good music.