I'm looking to build a machine with a MSI IM-GM45 Mini ITX Motherboard, Intel Core 2 Duo T7500 processor, 4 GB Corsair 200-Pin DDR2 SO-DIMM DDR2 800 laptop memory, (2) Seagate Momentus 7200.4 500gb 7200rpm laptop hard drives in RAID 0 config, and a 16gb compact flash card. What size power supply should I get for this machine? It has a 150 watt supply in it now. Is that enought to run this machine