Can someone help me with my summer playlist?

I'm doing an overhaul on my ipod and am erasing all my metalcore music from my ipod (August Burns Red i.e.) I'm now looking for music to fill my ipod that would fit my upcoming summer. I'm looking for chill reggae/ska/RnB/HipHop music to just plain chill with. Something along the lines of Bruno Mars' Lazy Song, Mike Pinto's Bad Luck or The Dirty Head's Lay Me Down. The Ska bands I listen to are usually Less Than Jake, Goldfinger and other 3rd Gen Ska bands. I need tons of suggestions so I can fill my 4 gig Ipod. Anything chill helps. P.S. Don't say Sublime, I have all of their albums