Hi, I am currently unemployeed but am actively looking for a job. Your Interview Series podcasts have been very helpful, thank you.
I am planning on entering a part time MBA program in the fall of 2010. I want to somehow inform my potential employers of this as there may be some during work hours commitments for the MBA program (although most of the tuition would be after hours).
Question is, when should I bring this up? After I get hired? Before the offer is made? Not at all under a month before the program starts?
Thanks!

After the offer is made
Certainly not before you have an offer.
Then you have to decide if this is "negotiable." If you plan to use vacation time or personal days for the program, then you probably don't need to mention it until after you're in the position. If you expect the company to make special consideration for your program, then you ought to make it part of the offer conversation.
John Hack