Probably pretty good. Places like that aren't usually expecting a person to come in with a PHD in computers you know?
I believe I read somewhere recently that GeekSquad requires an A+ if that helps put it in perspective for you.
I read it on this forum actually... hmmm. Let me see if I can find it.
EDIT: Ah I knew I read it somewhere.. Here is the post:
http://computerforums.org/showpost.php?p=1023829&postcount=65
GeekSquad of Best Buy (store level) does not require any certifications actually. - If they do, it is local preference only, and not company wide.
I know this because I worked for the company for over 4 years and served as an in-store tech, field residential tech (double agent), as well as a Special Agent, whom does server work for businesses and large projects.
As you progress through the company, they do require you to have more knowledge, obviously. Both in NY and Chicago, there were only two special agents for a territory, so the positions were limited. They'd present you tests and for higher up positions (like Special Agent) required CCNA, Net+, ect.
A+ is not a company wide requirement, but will help you *slightly* in some jobs. It is something you should be proud to have, as I am, though it is not where you should fall upon and end your studies. Most professionals hiring in the IT industry know anyone can crash for a test (even MCSE) in a few days to a few weeks.. experience, more than anything, is necessary.