Hi, long time reader and first time poster. I have a psu of 550w and to run my new nvidia gtx 460 I need two 6 pin pcie connections to the psu. My psu does not have any directly so I am thinking of using the 4 pin molex converters. The card came with a dual 4 pin molex to 6 pin pcie converter and the psu came with a single 4 pin molex to 6 pin pci converter. I have 4 free peripheral sockets, so i'm wondering do i need another dual 4 pin molex or should the single 4pin molex to 6 pin pcie work alongside the dual molex just fine?