If you like hip hop, and you haven't heard of or listened to Onyx, something is honestly wrong with you. They have some of the hardest material I've ever heard. Do yourself a favor and get on this.
All We Got Iz Us 1995
Shut Em Down 1998
Bacdafucup Part II 2002
Cold Case Files Vol. I Murda Investigations 2008 (For some reason, I could find this in .zip format. The link included is for a torrent. If you'd rather just download it in .rar format, click here.)