My computer parts came today, and are already all installed and running. I must say that was the smoothest motherboard/CPU/video card upgrade I've ever done. For once, Windows didn't throw a hissy fit and not boot - no need for a "Repair Install", just installed the new drivers and I was up and running. Even reactivating over the Internet just worked.

Linux was a little less friendly this time, but that was mostly because the video card isn't supported by the version of the Nvidia driver that is current in Kubuntu Gutsy, so I had to use the Nvidia installer. But Linux is up and running now as well.

manuel@ulthar:~$ cat /proc/cpuinfo
processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 15
model name      : Intel(R) Core(TM)2 Duo CPU     E6750  @ 2.66GHz
stepping        : 11
cpu MHz         : 2667.000
cache size      : 4096 KB
physical id     : 0
siblings        : 2
core id         : 0
cpu cores       : 2
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 10
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36
clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm constant_tsc pni monitor ds_cpl
vmx smx est tm2 ssse3 cx16 xtpr lahf_lm
bogomips        : 5336.87
clflush size    : 64

processor       : 1
vendor_id       : GenuineIntel
cpu family      : 6
model           : 15
model name      : Intel(R) Core(TM)2 Duo CPU     E6750  @ 2.66GHz
stepping        : 11
cpu MHz         : 2667.000
cache size      : 4096 KB
physical id     : 0
siblings        : 2
core id         : 1
cpu cores       : 2
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 10
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36
clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm constant_tsc pni monitor ds_cpl
vmx smx est tm2 ssse3 cx16 xtpr lahf_lm
bogomips        : 5333.32
clflush size    : 64

All in all, I'm happy. For reference, the new parts are:

Gigabyte GA-P35-DS3L motherboard
Intel Core 2 Duo E6750 processor
2 sticks of Crucial Ballistix RAM
EVGA Geforce 8800GT Superclocked 512M video card.Type your cut contents here.