some indie bands i'm listening to but you probably never heard of before (mainly experimental and electronica):
the octopus project
the national
ohbijou
panda riot
asobi seksu
mum
holy fuck (nice hardcore name)
benzos
bahnhof
trentemoller
damero
lymbyc systym

lol.

here are links to some bloc party videos(hah):
positive tension
helicopter