two flat : good investment?

[Bryan P]

Iv'e been looking to buy a house or condo for myself to live in, and just started to entertain the idea of buying a multiple unit building instead. I would live in one unit and rent out the other 1 or 2 depending on size. But I've noticed in Chicago that rent is pretty low compared to mortgages, so I wouldn't have a positive cash flow if I live in one unit. I found a real nice two flat with a top floor rental and an owner duplex on bottom. I figuered out the numbers and basically I would just be saving a few hundred a month compared to buying a single unit for myself. Is it even woth it?