Rock is such a diverse genre, but I'm a metalhead, so if you'd like to download some metal, here's my list of recommendations, and I've got a pretty long list here.

Children of Bodom - Needled 24/7, Angels Don't Kill, and Sixpounder

Killswitch Engage - My Last Serenade, Fixation On The Darkness, Hope Is, The End Of Heartache, Rose of Sharyn, When Darkness Falls, and Breathe Life

Lacuna Coil - Daylight Dancer, Swamped, and Heaven's A Lie

Shadows Fall - Idle Hands, Stepping Outside The Circle, What Drives The Weak, The Power Of I And I, Destroyer Of Senses, A Fire In Babylon, The Idiot Box, and Thoughts Without Words

ANYTHING from Slayer, Anthrax, or Motorhead

Megadeth - Blackmail The Universe, Kick The Chair, Die Dead Enough, Hangar 18, Symphony Of Destruction, Peace Sells, and Wake Up Dead

Judas Priest - Hell Bent For Leather, Electric Eye, Breaking The Law, Ram It Down, Blood Red Sky, Painkiller, and A Touch Of Evil

Lamb Of God - The Faded Line, Now You've Got Something To Die For, Ruin, Black Label, As The Palaces Burn, Laid To Rest, and Omerta

Testament - Disciples Of The Watch, Over The Wall, Trial By Fire, Into The Pit, and Eerie Inhabitants

Exodus - Bonded By Blood, Toxic Waltz, and Throwing Down

Nightwish - Wish I Had An Angel

Superjoint Ritual - Personal Insult, Dressed Like A Target, and Waiting For The Turning Point

Cradle of Filth - Nymphetamine (Overdose), Nymphetamine (Fix), Medusa and Hemlock, Guilded C*** (REALLY have to censor myself here), and Manequin

Pantera - Cowboys From Hell, Cemetery Gates, Psycho Holiday, Primal Concrete Sledge, Heresy, Medicine Man, Domination, The Sleep, Mouth For War, Walk, This Love, <img src=http://forums.eyesonff.com/images/smilies/rpg_009.gif><img src=http://forums.eyesonff.com/images/smilies/rpg_009.gif><img src=http://forums.eyesonff.com/images/smilies/rpg_009.gif><img src=http://forums.eyesonff.com/images/smilies/rpg_009.gif>ing Hostile, Rise, No Good (Attack The Radical), Regular People (Conceit), Hollow, Five Minutes Alone, Goddamn Electric, and Yesterday Don't Mean S***

God Forbid - Antihero and Gone Forever

Atreyu - Lip Gloss And Black and Right Side Of The Bed

Eighteen Visions - Waiting For The Heavens

I'll stop it there. I know I have more to recommend.