Siggywife,
The Edmonton PMQ's are extremely expensive (starting at about 700$/month) especially considering that you can get a similar size house (or a bigger condo) for a roughly equivalent amount.
The convenience of living on the base is offset by the yearly 100$/month rent hikes, perpetual road construction, continual harassment from the Military Police, and the refusal of CFHA to fix problems like leaky pipes, wet basements, single pane glass windows, poor insulation or mould.
Scrape up the down payment and get your own place, it is a waste of time to live on the base, and moving in and out is far more stressful than it has to be, due to the unco-operative nature of the civvies who work at CFHA in Edmonton. Moving into the PMQs was the dumbest thing I ever did, and moving out was an extremely aggravating (if satisfying) experience.
Hope this helps. (4 years later, I'm still bitter)