Hey there dude,
Thanks for writing us!
I think that with your list of schools you mentioned, you can apply for an MBA for the September 13 intake. You will be a bit on the low side experience-wise, so you DO have to take that into consideration and figure out how you can address that in y our application (i.e. by showing them that you actually have more experience than initially it seems). coming from a Tech background in of itself is no problem at all. Plenty of folks do and get in. But you do need to highlight the non-tech parts of your experience. If you write essays about building boilers, the schools will not be impressed, so focus more on the achievements, on your teamwork, on project management, that sort of thing. MiMs would also be good programs for you as you are on the borderline. But no one says you have to apply ONLY to MiMs or MBAs, why not simply apply to a good mix of both???
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