Yup, it's E7400, sorry for the typo
All the mobo suggestions either here on my other postings have fantastic features and decent price, but to be realistic when it comes to the availability (in my region at least), none of them are readily available. The nearest I can get is the mobo with the near-same configuration, incomplete interface (no HDMI, no digital optic out), different brand (DFI, Biostar), yet with much higher price. One IT store had the courage to suggest an ATI 4870 card (around $500) which will probably get me another more than decent PC build.
I will check again how much difference should I spent between Kuma config and Phenom X3 config, and will go from there.
At first I thought of Vista 64-bit, but calculating on how much time I will have to spend searching for the 64-bit enabled software to replace my recent set, I decided not to risk it and go for 32-bit. Many of my recent software doesn't say anything at all about 64-bit capability in their manuals or their website, so better not risk it I think. After all, all Vista DVD comes with both 32 and 64 bit. When ready, I'll go for 64-bit.
I don't have the sticks yet, so 2x2GB it is (or 4x2GB for 64-bit?).
As for NVidia to ATI comparison: which one has the mexican children?