OSAP really only cares if you have a 60% or greater course load.
For the record I assume you mean that you'll have an 80% course load in one semester and a 100% in the other, unless you've got some unusually weighted course. They care about what you're taking at any given time not averaged over the whole year.
Remember that it often takes just as long to do a search or two on Google to try and find the answer to your question as it takes to type it in a post here, let alone the time waiting for a reply.
If your question is "What mark does it take to get into University X", or "What are the requirements to get into University X", it's on their website and/or
electronicinfo.ca (for Ontario schools). Particularly for Ontario schools, those ranges are a pretty good picture of what kind of mark will get you into the program, and if you're more than a couple percent higher it's practically guaranteed unless it requires a supplementary form.
