BleepingComputer.com: Vista Index Score

my vista index score is as follows

Processor Intel® Pentium® 4 CPU 2.40GHz-3.8
Memory (RAM) 1.00 GB-1.7
Graphics NVIDIA GeForce FX 5500 (Microsoft Corporation - WDDM)-2.9
Gaming graphics 511 MB Total available graphics memory-2.6
Primary hard disk 32GB Free (75GB Total)-5.2

I am satisfied with my processor and my HDD but want to upgrade everything else. IM running a motherboard with DDR-400 capability, which im sure will have to go in order to get that score for RAM up. PLease make suggestions On newegg for products(Vid card, RAM, and processor) THe processor in there now is a socket 478 with a 800mhz FSB, i would like to upgrade to a 775 P4 HT 2.40ghz with the same or higher FSB. or a 1.7 core 2 duo with the 1066FSB. I want a Mb capapble of handling 800mhz FSB and up.. and it hast ohave PCI-E for my new video card. Please make some good suggestions as to what to get in order to up that score