My soon to be 5 yo only has one friend that we get together with on a regular basis (although we play with a few other kids that live near us when the weather is nice and everyone is outside)--if that makes you feel any better. And mine in an only child.
As for curricula: I have reviewed A Little Garden Flower and Live Ed, grade 1, as well as several Christopherus books, Waldorf Without Walls, Path of Discovery, and Enki. For price, ALGF is quite good but you'll need to do a lot of your own work with it (it provides more of a skeleton). You could combine ALGF with info from some homeschooling Waldorf yahoo groups (I haven't joined these yet but I heard Marsha Johnson's is really good and has a good archive) as well as some Waldorf blogs, like Ancient Hearth, and have a good set-up. It just takes extra footwork. I was not particularly impressed with Live Ed, esp. for the price. I got ours used on a Waldorf homeschooling yahoo group but even then we're talking $250. I didn't think grade 1 was worth it. I don't have Christopherus grade 1 but will be purchasing it soon. I do have other Christopherus books and overall like them quite a lot. They have a lot more detail than ALGF but I dislike how she talks "down" to gifted children, which is one of my peeves since dd is gifted. Of all the resources I've seen I tend toward Christopherus. I have a few Enki resources but I think Enki can be overwhelming. I have known many people who love it, though. You can get it used on yahoo groups but it's still pricey. I'm not that impressed with WWW or POD, although both are cheap. My honest recommendation, is try out Enki if you can afford it, or go with ALGF or Christopherus, keeping in mind with ALGF you'll need to supplement from other sources.
Carrie's blog, Parenting Passageway, reviews Waldorf curricula every now and then. You can poke around there and see what she says.