If you need E46 bearings, talk to Dan@Diffsonline. He has a solution for them. So does Metric Mechanic.
I haven't had any luck pulling bearings off of those diffs without destroying them.
'03 330i ZHP - Stock-ish
'02 330Ci - Megasquirt 3, M50 manifold, Kromer Kraft headers, Motons, widebody, etc.