Good grief-that's the spammiest-sounding headline I've ever written! Oh well, I was overdue. 
It does make sense, though, since I work with quite a few real estate investors who are currently purchasing properties in Charlotte NC and our surrounding areas. Most of the folks with whom I work purchase single family homes for long-term holds (which is great, since that seems to fit my personal investment profile).
Most of the investment gurus you talk to or hear at their seminars will preach about how positive cash flow is the be-all-end-all. I would have to respectfully disagree. In my opinion, the be-all-end-all is the house that is in an area with a solid rate of appreciation, where it will rent to solid tenants, and pay for itself in the not-too-distant future. (If you can plan for a slight negative in years 1 and 2, by year 3 with regular rental increases, you should be breaking even and by years 4 and beyond be positive).
Anyhoo. I have found some wonderful opportunities for positive cash flow (assuming a 10% down mortgage, which is about the best you can expect in today's lending environment), which also have had their prices reduced to a place where you'll be seeing a nice push on equity.
Call or email Leigh Brown for more information, I'm always glad to help whether you're buying, selling, or investing in Charlotte NC area real estate.