Hi Su,
You have the right attitude: use this opportunity to get your foot in the door, so to speak, and to gain some business analysis experience. If you can land a junior business systems analyst position it would be a great stepping stone for your career. My gut feeling tells me that you should be looking for a salary somewhere between $45K and $55K (in US Dollars - you can convert that into Canadian dollars).
If you really want this job just let them know that you are open and flexible and to make you an offer which they think is reasonable. Once you land the job, if you do a good job the increases will come. Also - after 2-3 years you can always move with another company after you gain the coveted first years of experience as a business systems analyst.
Take a look at this page also:
Salary Information for the Business Analyst and Systems Analyst
Hope this helps!
- Adrian