Probably. Here's a link to a blog I wrote on how to find rent-to-own homes: http://bit.ly/findaleaseoption
Let me clarify a few of the comments below.
First, technically, there's no such thing as "rent to own." It can be a "lease-option" or "lease-purchase." A lease option allows you to rent and gives you the right (but not the obligation) to purchase. A lease purchase allows you to rent but obligates you to purchase. Either can be OK, though a lease-option usually is better from the tenant-buyer's standpoint.
Do NOT, repeat NOT, rely on a "first right of refusal" that might be contained in a lease. Check with a lawyer for all the reasons. Basically, that's almost no protection, and certainly less than if you have a recorded option (or "notice of agreement"). Further, one of the beauties of an option (or a lease-purchase) is that it locks in the price. In the case of an option--just as with the "first right of refusal"--you can walk away rather than purchasing. But with an option you know what the price will be. With the "first right of refusal," you don't.
Beyond that, "first right of refusal" applies only if the owner chooses to sell. You find the perfect house. You want to buy it in a few years. With an option, you've got that right. With a "first right of refusal," the owner legitimately can say, "No I don't want to sell." So you're living in limbo for all those years.
With a lease-option or lease-purchase, you can negotiate (and generally do) that a portion of your rent is applied to the purchase price. That's very rare with a simple "first right of refusal."
I could go on and on. But the point is, if you're interested in buying the home, a "first right of refusal" gives you almost no protection and certainly no leverage.
Hope that helps.