Yes, I can. But I wouldn't go all JUST metal. I'd add hard rock and prog. Van Halen and Ozzie are probably my favorite "hard rock" bands. TONS of stuff between those two from old to newish. Then for metal, you've got Megadeth and Maiden so far. Throw in Judas Priest, Metallica, of course Black Sabbath (slower, kind of opposite of slash) and then honestly I'd just go back to the classics... The Scorpions, UFO, Uriah Heep, (prog) Yes, Rush and Kansas, ELP, etc. And of course Dream Theater and Circus Maximus.
When you start mixing these groups in, you'll see YOUR response to listening to them, form favorites, AND favorites for certain moods. Heck, I have Todd Rundgren Anthology and I listen to that almost every single month. It's a TOTAL change and such great songs. I listen to that in my office a lot, where Megadeth, Dream Theater, Ozzie and Van Halen may not be "quite" as appropriate.