I think i will go for a 325J with a P5P800 Mobo (Socket T with I865).
The price of this mobo is equivalent to the cheapest Intel / Asus I478
Mobo.

I'm looking to identify any overclocking test with the Celeron 325J,
but seems to be hard to see some O/C test on this CPU.

I hope that 3,8Ghz will not be too enthousiast for that CPU. (Else i
will go back to 667 Mhz bus speed, so about 2.9Ghz).