MarcoPE, you may not dig some of them but here's what I listen to nowadays (mostly rock) for what it's worth or if you want to check out new/ish stuff:
ARTIST//GENRE//ALBUM//YEAR//RECOMMENDED TRACKS//REMARKSBlack Sabbath//rock,heavy metal//2013//God is Dead?//Ozzy still has it!
Megadeth//thrash metal//Super Collider//2013//Super Collider;Kingmaker//Not 'Rust in Peace' but I like the new production.
Megadeth//thrash metal//Th1rt3en//2011//Sudden Death;Public Enemy No. 1; Fast Lane//Better then Super Collider
miscellaneous//rock,neoclassical,fusion//Heart of a Hero - Tribute to Jason Becker//all tracks//A smorgasbord of guitar-driven awesomeness; Jason Becker (now suffering from Lou Gehrig's disease) is a true guitar hero, esp. during his Cacophony era with Marty Friedman
Steve Vai//rock//The Story of Light//2012//John the Revelator//The true guitar virtuoso
Kiko Loureiro//neoclassical rock, fusion//Sounds of Innocence//2012//Conflicted;Mãe D'Água//Brazilian neoclassical/fusion guitar master
Kiko Loureiro//neoclassical rock, fusion//No Gravity//2005//Escaping; Dilemma//my favorite KL album; I drool over this
Foo Fighters//modern rock//Wasting Light//2011//Walk//Dave Grohl (former Nirvana drummer) has one of the best vocals nowadays
Paul Gilbert//rock//Fuzz Universe//2010//Fuzz Universe//PG's unique style never bores
Joe Satriani//rock//Black Swans and Wormhole Wizards//2010//Premonition;Dream Song;Pyrrhic Victoria;God Is Crying//The master who makes shredding always relevant; this is my 2nd favorite JS album after 'Not of this Earth'
U2//rock//No Line on the Horizon//2009//Magnificent;Moment of Surrender;No Line on the Horizon//fave album after Joshua Tree and Achtung Baby
System of a Down//neoclassical, hard rock//(all albums)//(all)// Serj Tankian is one of the best musicians of the modern times; also check out his solo album Elect the Dead
My Chemical Romance//modern rock//The Black Parade//2006//(all)//This band is one of the reasons why rock is still very much alive
Metallica//heavy metal, thrash//Death Magnetic//2008//All Nightmare Long;My Apocalypse;The Unforgiven III//It's their attempt to get back to their thrash roots and resonate with their fan base; album's not as great as Master of Puppets or ..And Justice for All, but a lot better than the Load/Reload monstrosity
Audioslave//rock//Audioslave//2002//Audioslave//Like a Stone//Chis Cornell (Soundgarden, best vocals ever) + Rage against the Machine's Tom Morello, what's not to like?
Avanged Sevenfold//heavy metal, neoclassical rock//City of Evil//2005//Beast and the Harlot//Dual guitars reminiscent of Iron Maiden but 10x better
Disturbed//hard rock//The Sickness//2000//Voices; Down with the Sickness;The Game; Stupify//David Draiman's percussive singing style is a welcome change
Dream Theater//progressive rock, hard rock//Images and Words//1992//Another Day;Pull Me Under//not a new album but it's my favorite; I also like their theme album Metropolis Pt. 2: Scenes from a Memory; there's an interesting track off Falling to Infinity called Peruvian Skies
Guns N' Roses//rock//Chinese Democracy//2008//Better,Catcher In The Rye//Distinctively new sound compared to their bluesy rock past; new band members
Slayer//thrash metal//World Painted Blood//2009//World Painted Blood; Hate Worldwide//Jeff's last album before he left this world; also my favorite Slayer album
Other recommended artists (across various genres and eras - I'm sure you know most if not all of them): Angra, 30 Seconds to Mars, Alter Bridge, Buckethead, Cake, Cacophony, Candlebox, Live, Collective Soul, Counting Crows, Van Morrison, Damien Rice, Crosby/Stills/Nash, Dave Matthews Band, David Gray, Dishwalla, Rush, Frank Gambale, The Fray, fun., Gavin DeGraw, Incubus, Jamiroquai, Jason Becker, Jeff Beck, Jim Croce (my all-time fave), John Mayer (Continuum is a great album), Journey (new vocalist), The Killers, Lamb of God, Children of Bodom, Linkin Park (2nd best rock vocals, after Chris Cornell), Liquid Tension Experiment (Dream Theater's spin-off), Lynyrd Skynyrd (of course!), Machine Head, Manowar, Iron Maiden (check out the song Starblind from 2010's The Final Frontier album), Marty Friedman (new albums), Matisyahu, Michael Angelo Batio (fastest fingers in the universe), Michael Franks (smooth jazz), Morrisey, Muse (one of the best new bands), Naked (check out Raining on the Sky), The Nixons, No Doubt (check out Tragic Kingdom album), Our Lady Peace (check our Superman's Dead), Papa Roach, Pearl Jam (Yield album), Placebo, The President's of the USA ("It's gonna blow!"), Radiohead (new albums The King of Limbs and In Rainbows), Rage Against the Machine, Red Hot Chili Peppers (bassist Flea is crazy good, as you're likely aware of), Santana (Guitar Heaven album), Silverchair, Slipknot, Snow Patrol, Stereophonics, Tantric (I really like this band too), Testament, Train, Trivium (the new Metallica?

), The Verve, The Wallflowers, Yngwie Malmsteen
I hope you'll find something here that will somehow help you get back on track with your music.
"Don't die with the music still in you." -
Dr. Wayne Dyer