Not too many shocking releases this week, but there are a few that are certain to hold a central spot on your iPod for a pretty long time. Highlights include [tag]Jay-Z[/tag]’s much awaited post-“retirement” LP American Gangster, inspired by the same titled movie. It seems hip-hop holds this weeks monopoly, in terms of new records, as Jay-Z fellow eastsiders [tag]Infamous Mobb[/tag] release their third studio effort, Reality Rap. Blink 182’s legacy, together with +44, alt…