I'm also going to university in September.
I'd suggest finishing your CV off as soon as possible and start finding and applying for jobs even your only going to end up being there for 2 months or something its worth getting that extra money. ( After months of job seeking for a summer job I've finally got some interviews lined up.)
If you want a part-time job whilst at uni I heard it might be easier as employers would be targeting students, the university it self will probably be hiring students as well.