at retail store, usually quite expensive compare with taiwan. unless you can find onsale product.
however, you can buy from the internet. you can ask your co-worker to buy and you give him money. if they con't accept your credit card.
it is easiler to find high end board (for ex, dual or qual xeon or athon) or some special purpose board in the us. you can serch on the internet first and compare the price and avialbility.
ps. if you want to buy p4c800-e, i will just try to find it in taiwan. it seems like a fairly common motherboard. perhaps you can call asua taiwan and see where you can find it.
pps. if you are looking for p4c800-e, you may also consider Ncch-DL or Ph-DL from asus. it's dual xeon board. based on 875 chipset. today's xeon price is quite simier to p4 price, and you get the option to go for dual cpu.
