About moving to Nigeria (Lagos)

Hi everyone,
My boyfriend and i live in Ireland, where we own a small business. (IT support/Computer Repair/Internet Cafe & gamezome) with the Irish economy down-turn and getting worsen. We have seen our business shrink by 75%. Since my boyfrined is from Nigeria, so we are thinking of moving our business to Nigeria, but our problem is where will the business bias & how to get into Nigeria market, since my boyfrinend don't know people that much in Abuja or Lagos because he left Nigeria about 14 years ago, only visit as holiday. Now things are bad and we need to make a move. What could be yours suggestion since your guys live in Nigeria? Any idea will be of help. Thanks!