My New Computer

Last night, I tried to assemble my new computer. I want the best hardwares spesification althought I have limited budget. The main hardwares are:

1. Motherboard: ECS NForce5M-A

2. Processor: Athlon64 Dual Core 4000+ X2

3. Memory: Kingston DDR2 - 1G PC5300

4. Graphic Card: ECS GeForce 7300GT DDR2 256MB PCI-E

I don't know about these combination will be in best performance or not. If you have any information about computer assembling, please help me. Thank you...