Conclusion: Overall, Epox 9NPAJ SLi is a good value board as it gives good performance and comes with a lot of features such as EZ buttons, onboard LED display trouble-shooting, flexible thermometer and others. However it doesn't really a good overclocking board altough it provides nice BIOS tweaking. 132USD for a good performance, nice features board is quite rare, so Epox 9NPAJ SLi should be one of the great SLi board choice and it will serve you well too.
Pros: Support SLi, Cheap price, 8 Channel audio system, EZ button, Onboard LED display trouble shooting, Flexible thermometer, Rear exhaust fan, Eye-catching board, Memory BIOS tweaking
Cons: Not really idea board for hardcore overclocker, Bad 24-pin, 4-pin ATX connectors placement, No support for IEEE 1394 Firewire