Just trying to whittle down my 500GB HDD so it'll fit on a 256GB SSD. iStat menus and Space Gremlin say I've only got it down to 292GB, but finder "Get Info" says it's 160GB on disk! Where's the space gone? There's nothing in the trash? is it highly fragmented or is there something funny going on? +80% of what finder says is a fair bit out!!! It says current drive is 500.11GB and there's only the one Lion partition! Which is right?