Hello guys, I'm thinking of building a system with the following specs. I have never done this before, so if im making some obvious mistake then please tell me... 
CHAINTECH VNF4/Ultra Socket 939 NVIDIA nForce4 Ultra ATX AMD Motherboard - Retail
AMD Athlon 64 3000+ Processor (Venice) Socket 939 Retail
Memory- Open for suggestions (2 x 512)
Sapphire Radeon X800 Pro PCI Express 256MB DDR3 Video Card w/TV-Out, DVI & Video-In
Western Digital WD Caviar WD800JD 80GB Serial ATA 7200RPM Hard Drive w/8MB Buffer
Antec SONATA 0.8mm SECC Steel ATX Mid Tower Computer Case 380W Power Supply - Retail
As you can see, I need to choose the memory that will go with my system. Im hoping these memory will be under $100 total and allow me to oc my CPU to about 2.5ish (should I just oc my ram or change FSB:RAM ratio too?). And also, would the 380watt PSU be enough for my system or do I need something more?
If theres anything else I need to watch out for, please let me know. Thanks for the help.
CHAINTECH VNF4/Ultra Socket 939 NVIDIA nForce4 Ultra ATX AMD Motherboard - Retail
AMD Athlon 64 3000+ Processor (Venice) Socket 939 Retail
Memory- Open for suggestions (2 x 512)
Sapphire Radeon X800 Pro PCI Express 256MB DDR3 Video Card w/TV-Out, DVI & Video-In
Western Digital WD Caviar WD800JD 80GB Serial ATA 7200RPM Hard Drive w/8MB Buffer
Antec SONATA 0.8mm SECC Steel ATX Mid Tower Computer Case 380W Power Supply - Retail
As you can see, I need to choose the memory that will go with my system. Im hoping these memory will be under $100 total and allow me to oc my CPU to about 2.5ish (should I just oc my ram or change FSB:RAM ratio too?). And also, would the 380watt PSU be enough for my system or do I need something more?
If theres anything else I need to watch out for, please let me know. Thanks for the help.