I think that's a major difference, between our setups.
Because i need linux 64 bit. In 64 bit i can make use
of more main memory like up to 16 GB. Performance is not as important. In my case i want to adress more resources.
I plan to use this System for High memory demanding 3d/2D Application programming.
I think the whole problem is originated, that i am using a 64 bit kernel. If i would have stayed 32 Bit i would have gone with a stable dual Intel Setup. At the moment there is not
even a Windows XP 64 Bit, it is still very much Beta.