This is a basic list of metal bands to get you started. If you're feeling adventurous, check out any one of the bands listed below. I have given each a generic descriptorso you will have some frame of reference (unlike Donnie who loved bowling). You really can't go wrong with any band on this list (however, you can go wrong with some of their albums...I'm looking at you Risk by Megadeth). Buy (that's right, pay for it!) an album by any band on this list. If you like it, metal is for you. If you don't like it, the next flavor of the week is waiting for you just around the corner (ie. next week).
The Metal Gods - Enter the realm of the gods! This is Metal. Take your pick, you can't go wrong.
http://www.black-sabbath.com - Black Sabbath
http://www.deeppurple.com.au - Deep Purple
http://www.robhalford.com - The “Metal God” Rob Halford
http://www.ironmaiden.com - Iron Maiden
http://www.judaspriest.com - Judas Priest
http://www.metallica.com - Metallica (1983-1991, then then broke up, right?)
http://www.ozzy.com - Ozzy Osbourne
http://www.officialpantera.com - Pantera (RIP Brother Dime)
Merely Mortal Metal Bands - They're all great, just not GREAT, ya know?
http://en.wikipedia.org/wiki/Accept - Accept (Ruthlessly Efficient German Metal)
http://www.angra.com/ - Angra (Brazillian Progressive/Power Metal)
http://www.anthrax.com/ - Anthrax (East Coast American Thrash Metal)
http://www.annihilatormetal.com/ - Annihilator (One-man-band-British-Colombian Thrash Metal)
http://www.blacklabelsociety.com - Black Label Society (New American Metal)
http://www.ronniejamesdio.com - Dio (Classic Wizard/Fantasy Metal) - R.I.P.
http://www.dreamtheater.net - Dream Theater (American Progressive Metal)
http://www.gammaray.org - Gamma Ray (German Power Metal)
http://www.helloween.org - Helloween (German Power Metal)
http://www.icedearth.com - Iced Earth (Classic American Speed Metal)
http://www.kamelot.com - Kamelot (American Symphonic Metal)
http://www.yngwie.org - Yngwie Malmsteen (Neo-Classical Metal...Think Bach, but Metal - Yikes!)
http://www.megadeth.com - Megadeth (THE Thrash Metal, PERIOD.)
http://www.metalchurchmusic.com/ - Metal Church (Classic Seattle Thrash Metal)
http://www.imotorhead.com - Motörhead ("If you squeeze my lizard, I'll put my snake on you.")
http://www.opeth.com/ - Opeth (Unpredictable Swedish, Progressive, Death Metal)
http://www.the-scorpions.com - Scorpions (German Power Metal)
http://www.slayer.net - Slayer (American Thrash Metal/Pioneering Death Metal)
http://www.queensryche.com - Queensryche (Think Pink Floyd, but American...and Metal)
http://www.zakkwylde.com - Zakk Wylde/Black Label Society (Ozzy's old guy)