Well with some more testing they sit at 25deg running memtest#5 overnight (thats reading directly from the surface of the chip) with my 2 x 60mm Sanyo's on them - thats pretty cool (pardon the pun, he he!)
Still can't get any extra MHZ out of them, I'm damn sure it's my FX55's mem controller, I originally had an early revision MSI Neo2 board, then bought one with the new stepping NF3 chip as advised by OPB.
I also tried 3 sets of GSKILL 4800 and couldn't break the 280Mhz barrier even with loose timings....
I guess the next step is to try a Venice or San Diego... then maybe the new ATI board...
Cinders.