Are all of these parts compatible?

[killthenakedcat]

This is a cheap build for a buddy at work. I just need to know if there is anything incompatible about the build....any feedback would be appreciated. I am trying to go as cheap as possible for him without using really low end stuff I guess.

1.COOLER MASTER Elite RC-310-BWN1-GP Black Steel / Plastic ATX Mid Tower Computer Case
Newegg.com - COOLER MASTER Elite RC-310-BWN1-GP Black Steel / Plastic ATX Mid Tower Computer Case

2.Western Digital Caviar Blue WD5000AAKX 500GB 7200 RPM SATA 6.0Gb/s 3.5" Internal Hard Drive -Bare Drive
Newegg.com - Western Digital Caviar Blue WD5000AAKX 500GB 7200 RPM 16MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive -Bare Drive

3.BIOSTAR A770E3 AM3 AMD 770 ATX AMD Motherboard
Newegg.com - BIOSTAR A770E3 AM3 AMD 770 ATX AMD Motherboard

4.AMD Phenom II X4 840 3.2GHz Socket AM3 95W Quad-Core Desktop Processor HDX840WFGMBOX
Newegg.com - AMD Phenom II X4 840 3.2GHz 4 x 512KB L2 Cache Socket AM3 95W Quad-Core Desktop Processor HDX840WFGMBOX

5.G.SKILL Ripjaws Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10666) Desktop Memory Model F3-10666CL9D-8GBRL
Newegg.com - G.SKILL Ripjaws Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10666) Desktop Memory Model F3-10666CL9D-8GBRL

6.LOGISYS Computer PS550ABK 550Watts ATX12V Power Supply With SATA and 20/24 Pin connectors. Newegg.com - LOGISYS Computer PS550ABK 550Watts ATX12V Power Supply With SATA and 20/24 Pin connectors.

 

[atomichybrid]

your build seems compatible so far, you may want to put a graphics card as well since theres no onboard graphics.

 

[killthenakedcat]

i forgot to post it
Newegg.com - PowerColor AX5570 1GBD3-H Radeon HD 5570 1GB 128-bit DDR3 PCI Express 2.1 x16 HDCP Ready Video Card

 

[Indigo]

The power supply needs to go. Do not buy that brand. If you are a good friend, you'll be good enough to recommend a power supply that wasn't put together by kids in an sweat shop.

Newegg.com - Antec BP550 Plus 550W Continuous Power ATX12V V2.2 80 PLUS Certified Modular Active PFC Power Supply

Is the minimum I would recommend for such a build (the brand and price combination, the wattage should be fine for that system)

You do others a great disservice when you buy $<=30 power supplies.

Other than that glaring fault, your build looks fine.