Hi Soar,
From my understanding of the 95W versions of the Hex core CPU's is, at the moment in Europe, they can only be bought as part of a package or by System Manufacturers as part of a pre-built system and are not available as stand alone processors.
Of course, that doesn't mean that you can't get them and, as you rightly ask, what are the differences and the advantages. Well, the obvious difference is in the power draw, 95 Watts v 125 Watts this in turn will mean less heat is being generated by the CPU allowing this chip to be used in smaller chassis, HTPC's and the like. Apart from that there are no significant differences that I have been able to find. They still use the same 45Nm Thuban design, have the same cache, use the same amount of transistors and they are basically the same as the 125W version but the drop in power has been achieved through better production values.
AMD are still producing lots of the 125W CPU's hence the reason that the 95W version isn't going to be made widely available on this side of the pond, everyone would want one of these in favour of the 125W version and it would not be good for sales! If you can get hold of one then, it would be the better option.