I don't listen to a lot of rap, but I have always liked this one from Fifty he did a good job on this one and the reggae feel to it is nice too. What cha think?

50 cent had two good albums.

The unreleased but heavily bootlegged Power of The Dollar

His Shady records debut Get Rich or Die Tryin which was mainly produced by Dr. Dre and Eminem.

The song mentioned by the OP is in the latter album and it certainly is quite nice. The thing with 50 is you either feel him or you find him annoying as fuck with his sing song choruses.