forget the extigy, its too bulky, has a low signal output, and requires a separate power supply. Go for a maya usb soundcard from audiotrak. Different places have different prices, and it depends on which country ur in. I'm in the uk and have a lot of choice. I'm using the audiotrak 5.1 usb and its a gem. I also have two channels to record with. the 5.1 has been superceded by the 7.1 that has no recording options, but u should still be able to find some 5.1 if u need it.
just run a search for maya usb which is from audiotrak.
did I also mention it fits seamlessly into pcdj?