Finally, the new PC is built:

P-IV 3.2GHz + Hyperthreading
ABIT IC7-Max3 Mobo
2GB (4x512MB PC3200 Samsung)
NVIDIA Quadro4 980-XGL
Dual 17" iiyama LCD monitors
2x120Gb Maxtor Diamondmax 7200rpm SATA
Windows XP-Pro (SP1)
ANTEC SX-1040 Performance II tower case with 400W ATX supply
Logitec MX-310 mouse
Cherry standard US keyboard
DVD burner

It's finally great to be able to use Maya the way it should be used.... dynamics performance and rendering times are finally where I want them to be! Now I just have to copy my files from the laptop and I can continue my projects