Are there many part time job opportunities at mac available?
Anything like at all...and it is difficult to get one?
i still have bills to pay ahahha

I think it is somewhat difficult to get a job at Mac. I know that Titles did hire a bunch of people but that was before the winter semester ended I'm sure some places are still hiring, but there are definitely limited opportunities. Personally, I would apply at places around campus in Westdale and/or surrounding neighbourhoods. I work at a Metro and even though it can be kind of BS at times, it's a pretty flexible job for a student and you get treated decently well; I recommend applying at the one in Westdale. Also, there are lots of little cafes in Westdale and I know a few people who have obtained employment at some of them, so give them a shot. Best of luck in the job hunt!

You might be able to find a job on OSCAR before classes start... I think the post some campus jobs for the fall, the MSU also posts jobs every once in a while, I think thet are hiring people to help out at shows and stuff like that during the year.

GRS (guest registration staff)

If you can demonstrate financial need, you can qualify for the work-study program: http://sfas.mcmaster.ca/work_study/jobs.html

This gives you access to extra jobs on OSCAR that you can apply for.

I'm pretty sure postings for jobs go up on August 1st (on OSCAR). It is fairly difficult getting a job at mac, from my experience anyway. I'm working at a place in University Plaza which is fairly close to Mac. As someone else mentioned, Westdale has a lot of places too.