^^ Dude, you can't say whether GS600 is sufficient to power his rig up or not without seeing his total config.
Thank u all, i went for gs 600 itself!
my config is:
i5 2400
4gb ram
2 tb raid 0
dh67bl mobo
thermaltake m9 cabinet
creative 5.1 speakers
benq e2400hd monitor
and yeah the MSI Radeon 6870 HAWK