Wow banned, for what?
Anyway, the Kingston KVR400D2D4R3/4G is a 4gb dimm.
and since you had some dutch in your list:
Creative X-Fi Xtreme Gamer PCI OEM Beoordeling: geen € 44,36
Creative X-Fi XtremeMusic PCI OEM Beoordeling: goed € 68,10
Creative X-Fi XtremeGamer Fatal1ty Pro PCI OEM Beoordeling: goed € 99,-
Don't bother with the ~40€ xtreme audio card, it doesn't even compare with a audigy2 zs ( not even close actually).
A kickass soundcard for less then 50 €