im very sorry to hear that mate...
cancer sux... ive lost 11 ppl so far in my family to it thus far... actually 12 as my mums uncle passed away on the weekend also.
i cant begin to imagine what i would do or how i would take my mum passing away, its bad enough that shes living in another country.
always remember the good times you guys had together as well as the bad and just remember your mother no matter what will always be there for you.