Thanks for both of your replies.
I'm having trouble finding the SeaSonic you posted outside Newegg but I managed to find this SeaSonic 80Plus M12II 620 on amazon: http://www.amazon.com/dp/B003HE260I/?tag=pcpapi-20
How do you say it compares to a Corsair CX600 in terms of reliability?
I'm going extra safe on quality because I won't be able to get a replacement if it fails one year down the road. Sorry for that.