I’ve been checking out the indie sales figures charts over Indie HQ fairly regularly. Copyright issues and bitching/complaining about said issues prevent them from posting the full charts, but they always post at least a partial one. Here are a few tidbits, to give you an idea about what sort of numbers some of the “bloggier” bands do (digital is included in these numbers, btw):

Interpol - Our Love To Admire - 73,000 units
Spoon - Ga Ga Ga Ga Ga - 47,000 units
Justice - Cross - 5,000 units (50% digital)
M Ward - Duet For Guitars #2 - 1,600 units
Buffalo Tom - Three Easy Pieces - 1,600 units
St. Vincent - Marry Me - 1,300 units