Here is my dilemma... I am building my first computer. TURNING out to be the first mistake lol. Here is the list of hardware I bought. All purchased from Newegg.com.

APEVIA X-Plorer ATXB8KLW-GN Black/Green Steel ATX MID Tower Computer Case
AMD Athlon 64 X2 3600+ Brisbane 1.9GHz Socket AM2 Processor Model ADO3600IAA5DL  
BIOSTAR TFORCE 550 Socket AM2 NVIDIA nForce 550 MCP ATX AMD Motherboard  
SAPPHIRE 100145L-GN Radeon X1600PRO 512MB GDDR2 PCI Express x16 CrossFire Video Card
PHILIPS 16X DVD±R DVD Burner With 5X DVD-RAM Write 2-Tone ATAPI/E-IDE Model SPD2410BD/17
ZALMAN CNPS 9500 AM2 2 Ball CPU Cooling Fan/Heatsink
APEVIA ATX-CW500WP4 ATX 500W Power Supply
Western Digital Caviar SE WD1600JBRTL 160GB 7200 RPM IDE Ultra ATA100 Hard Drive
CORSAIR ValueSelect 1GB 240-Pin DDR2 SDRAM DDR2 667 (PC2 5300) Desktop MEMORY Model VS1GB667D2

My 2 problems, thus far, are that the DVD drive doesn't open or shut when pushing the open button. The second problem is what I'm more concerned about. I can't get my monitor to display anything. The motherboard does NOT have on-board video and when CONNECTING the monitor to the video card, nothing is displayed. Monitor reads No Signal. Computer boots up, HD spins, green light goes on for the DVD, but no picture and the DVD doesn't open. Seems like everything else is working properly. However, one of my online friends had said that it is supposed to beep. That there is supposed to be a wire from the case to the MoBo for a speaker so that it can give Bios beeps?? Don't know about that. Can't find any such wires. I do see the pins on the MoBo for it, but can't find the wires to hook to it. Double CHECKED power wires and all. HD is set to Master, DVD set to slave. They are on the same IDE cable. There is only on IDE oulet on the MoBo. Can't think of anything to describe that would help. Someone please help me. I'm am completely distraught.   Thanks!
~Tandiey~
Strip the system of everything but the motherboard / video / RAM.  Boot the system.  Do you POST (beeps when starting)?  If so, start adding one component at a time, starting with the keyboard, mouse, etc., until the system fails.  Usually the last component installed is the cuprit...though not always.
 
Alan <><  :-)

BTW - many systems come with the speaker mounted on the motherboard