My anecdotal evidence tends to agree with Electrode at this point. Perhaps for your first job, it might matter a little, but pharmacies are looking for your job experience after you're no longer a new grad.
However, I can see that somewhere in the future, it will matter where you went. Look at it this way: If you want the top 5% of physician jobs, it does matter where you went to school. If not, a medical license is a medical license as long as you're qualified. I feel pharmacy is the same way, and will be that way for the foreseeable future. The caveat is that some areas are much, much more competitive for jobs than others (CA, IL, etc.) and will thus have find ways to choose between more applicants.
However, going somewhere with prestige may open more doors for you, and in the future that will probably become more pronounced. A prestigious school may also have a better alumni network or more on-campus experiential options (like an attached hospital).
I'm having flashbacks to a discussion rxlea & I had a while back.
Take it with a grain of salt - you're asking on the pre-pharm forum, and you're getting my best answer based on the homework I personally have done about the field.