Does the PSU in the following build have enough power to sort EVERYTHING I'm planning on? i'll tell you all the parts.
CPU: Intel Core i3-4130 3.4GHz Dual-Core Processor
Motherboard: Gigabyte GA-H97-D3H ATX LGA1150 Motherboard
Memory: Corsair Vengeance 8GB (2 x 4GB) DDR3-1600 Memory
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive
Video Card: MSI Radeon R9 270x 2GB TWIN FROZR Video Card
Case: Cooler Master K-series K380
Power Supply: XFX 550W 80+ Bronze Certified ATX Power Supply
Optical Drive: Lite-On iHDS118-04 DVD/CD Drive
Operating System: Microsoft Windows 8.1 (OEM) (64-bit)
Monitor: ViewSonic VX2252MH 60Hz 21.5" Monitor
Keyboard: Corsair Raptor K30 Wired Gaming Keyboard
Cooler Master SickleFlow 120 - Sleeve Bearing 120mm Red LED
Silent Fan x2
bt-wifi-dongle-300-usb-wireless-adapter
Perixx gaming mouse mx200011
CPU: Intel Core i3-4130 3.4GHz Dual-Core Processor
Motherboard: Gigabyte GA-H97-D3H ATX LGA1150 Motherboard
Memory: Corsair Vengeance 8GB (2 x 4GB) DDR3-1600 Memory
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive
Video Card: MSI Radeon R9 270x 2GB TWIN FROZR Video Card
Case: Cooler Master K-series K380
Power Supply: XFX 550W 80+ Bronze Certified ATX Power Supply
Optical Drive: Lite-On iHDS118-04 DVD/CD Drive
Operating System: Microsoft Windows 8.1 (OEM) (64-bit)
Monitor: ViewSonic VX2252MH 60Hz 21.5" Monitor
Keyboard: Corsair Raptor K30 Wired Gaming Keyboard
Cooler Master SickleFlow 120 - Sleeve Bearing 120mm Red LED
Silent Fan x2
bt-wifi-dongle-300-usb-wireless-adapter
Perixx gaming mouse mx200011
You're looking at maybe 325w or so at load, you'll be fine 
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