I'd suggest you to consult Mr. Mahesh about this... And well, i think it'll be on a case-by-case basis, which means you might need to have extra qualifications (e.g. IELTS, SAT) or etc. if you wanna enter Canada or UK (not to mention you need damn gung-ho scores la).

If you wanna study in UniMelb it shouldn't be a prob as Monash is under Group of 8 (the best 8 universities in Australia) - they recognise each others' foundation programs. But well, dude, good luck. I have friends who got offered to study in UK. after scoring 350.