build multimedia pc

hi guys
iam trying to build a new pc fro bluray burning and playback for my living room
ishould say multimeda pc w/bluray burner

i bought
aercool m40 black mini case
inter core2 qud q6600
ecs g31t-m 775 mini atx mother board
2gb 800 ddrs ram
bluray rom
nvidia geforce 8500gt 512mb garphics card
500w power supply unit
500gb sata harddrive from seagate
vista home premium sp1
whatelse i need
since is is coming the modem card i don't need