Can i use a Thermaltake Hamburg 530 Watt PSU for an Antminer S3 ?
Yep. Without overclocking (since this PSU has only 2 PCI-E 6+2 pin connectors). But if you obtain two molex-to-PCI-E(6 or 6+2 pins) adaptor, you'll be able to overclock your S3 too. But do not expect too much overclocking, 'cause this PCU can provide maximum 456W power at 12V line.
Ok, is there any other good PSU to power 1 S3? Corsair VS650 is not good then as it has 2 8PINs on 1 cable?