i'm not sure what kind of parties people here are having, but 80s metal is not what most people wanna listen to (unless this is an all-guy party, which is a ****** party to begin with). Ozzy, welcome to the jungle, and other awful 80s music is not good 'party' music.
here's stuff i played at our party last week (until the cops came):
Queens of the Stone Age - in my head
Interpol - narc
muse - map of the problematique
radiohead - electioneering
radiohead - idioteque
spoon - i summon you
rage - testify
shins - phantom limb
tv on the radio - wolf like me
wolfmother - dimension
beck - hell yes
i've found variety works better than one type of music (outdated ozzy/GnR songs). a few girls told me they liked the music a lot, so i guess it was working.