Okay, my decision is that I will ad a 600W PSU, put in a s939 version of the Athlon64 X2 4800+, and add a normal-cooled Sapphire Radeon HD 3850 (512 MB).

The problem of the Zalman 600W is that it seems a little bit too wide (165mm, my current is +/- 15 with barely space left). So what do you guys think of this one? It is an AMD certified OCZ PSU of 600W, silenced and with standard dimensions (at least, it fits in my case). OCZ Technology | Products | Power Management | OCZ GameXStream Power Supply (NVIDIA SLI-Ready). It seems as good as the Zalman to me, and it's a lot cheaper.

__________________