Woa woa woa... wait a minute.
The Asus P5LD2 Deluxe is a 945P chipset. That's ANCIENT. Do not get that board.
Get a P45
board. And if you can spare the extra cash, get some cheap 1066Mhz DDR2 and a good cooler so you'll have plenty of overclocking head room. Those chips can go well over 4Ghz with the right setup.