Sorry was busy over the weekend, but here's my specs...
ASUS P5Q LGA 775 Intel P45 ATX Intel Motherboard
OCZ StealthXStream OCZ500SXS 500W ATX12V / EPS12V Power Supply
Intel Celeron E1200 1.6GHz 512KB L2 Cache LGA 775 65W Dual-Core Processor
As you can see the PSU says eps12v but newegg messed that part up.. So I guess its not really a good idea to have the 2 4pin rails come from different sources then? I know for a fact that there are adapters from 2 male molex to 8pin ATX12V so I thought it would be possible to try what I was thinking, but I'm not gonna risk it if its never been done before. Besides my cpu isn't too powerful, but I want to overclock it when my build is finished (should be today). People are getting a 100% overclock so I thought having the extra 4pins would make it more stable.