The HCL for leopard is very slim when it comes to sound cards. I have an Intel DG45ID board with an onboard Intel High Definition Audio device, which is unsupported (right ?), so I'm looking for a cheap line-in solution. I have USB Harman Kardon Sound Sticks for output, so I just need an input device.

Are there any osx-supported usb line-in devices ? Alternatively what PCI soundcard would work well ?