at first i was going to run an Epia board. But then after doing some reading i see they are having problem running Divx. Here what i want to run will the OPUS 150W be enough. Was are some other DC-DC options?

OPUS 150W
Shuttle SN41G2V2
XP2100
512 PC 2100
Audigy 2 ZS
silm cd/dvd
2.5 60GB HD
3 USB Devices. GPS, WLAN, Bluetooth