I would say pretty huge. The first question i would have for you is why did you choose pharmacy when you never even stepped foot in a pharmacy before? Also I'm sure you've heard of the terrible job market and several companies making cuts. This means interns are no longer safe either. The chain I work for has recently fired several interns in our district and has limited intern hours to 4 hours a week each. Basically it may be extremely difficult to find an intern job when you're in pharmacy school. And obviously you're going to want find a job ASAP when you start school because who the heck is going to hire a pharmacy graduate with zero experience in today's market. Thus if you find a tech job now, it will be much easier to get promoted to intern within your company once you start school.