hello mr string.
razer carcharias sound quality is just a mere good, nto excellent. but it is very comfort and lightweight. plus the unique cushion of thea earcups is not made of leather, so you wont feel warm inside ur ear.
as for g35, it would be much heavier and stiffer than carcharias. you will definitely feel something is on your head when u use it. earcups are made of leather will feel warm abit.
i think G35 is not necesary since your m11x already has 5.1 surround built in.
G35 also eats up one usb port, like megalodon

in my opnion, you can go for steelsries siberia v2. those are realyl great headsets. but the price is rm429 without the usb sound card.
if ur looking for a gaming mouse, razer mamba is a good choice, but it will be more troublesome since you are carrying it around. the battery can only last less than 3 days.

orochi would be a great pair for m11x if you're carrying it around all the time. megasoma mousepad is abit heavy and the surface is abit like silicon. but to me, i think its not worth the price of rm175. rather get kabuto for portability.
anywayz:
update.
darn my order status not moving. called customer service and waited for nearly 20 minutes. his name is tinesh and i cant really understand his english =.=
but anyways, he said my unit is currently in the manufacturing build complete and he said the unit may be delivered on this friday evening. but he said don count too much on him. lolz