Corsair DDR 512MB PC3500 C2 HSP € 340.97
Corsair DDR 512M PC3200 HSP400Mhz Cas2.5 + heat spreader € 260.15
think those are the regular european price (woo boy,...)
edit, cked the dual ddr spec out, u can find it here:
http://www.anandtech.com/showdoc.html?i=1750&p=4