I Tunes File Stucture
 

Got an IPod classic today which is ace but I was wondering if I could structure albums like the following

Albums > Pop > Girls Aloud
Drum and Bass > Commix
Electronic > Underworld

with genre then the actual album, making folders in Itunes seems to be ignored by the Pod itself, so its albums > actual album

Also is there any way when ripping an album into the library you can tell it where to go on your hard drive, I know a folder can be specified (i.e D:\Music) but Itunes organizes albums under this rather oddly