Partsman, Wax myrtle, butterfly bush, (there is a new one out called Flutterby bush that is sterile), Pittosporum, Green giant arborvitae, any kind of cypress, juniper, (Hollywood juniper does very well in SC, try not to cut it, it's gorgeous the way it grows,) mix them up when you plant them, Sweet olive is a great privacy bush and smells heavenly in spring and fall, don't plant everything too close even though you want privacy, that way they will look better when they all grow in.

The FAQ has some suggestions... Keep in mind fast growers are not always the best choice if they are messy and/or have invasive root systems. Check with a good nursery about leaf, fruit, and flower drop as well as what the root systems will do to the surrounding areas. Here is a link that might be useful: screening suggestions from FAQ

My favorite shrubs for hedges are the hollies. There are many of them available and some get quite tall while others remain more compact. Their tiny flowers (so small you hardly notice them) are amazingly fragrant, and the birds love the berries, although they generally don't eat the berries until later in winter. Hollies are amazingly heat-tolerant, drought-tolerant and wind-tolerant once established. Dwarf Burford holly makes a really nice privacy screen along a fence line with the proper spacing, particularly if you let them reach their natural pyramidal shape and don't prune them. The use of the word "dwarf" is deceptive because they are dwarf only in comparison to regular Burford holly which is a huge monster. The dwarf Burford hollies we planted about 10 years ago are about 10 feet tall and each plant's spread covers 6' to 8' feet in width. We spaced them pretty far apart so they could reach their mature size without crowding one another. Another lovely shrub that is underused is Abelia. These are semi-evergreen, small-leaved shrubs that flower in spring. Their growth is quite dense and they are very drought-tolerant once established. I have a chaste tree in the backyard butterfly garden and the wildlife love it, and so do I, but it is deciduous and won't provide much privacy in winter. I've linked the website of Sooner Plant Farm for you because their website is amazingly informative. It has detailed into on many of the types of plants mentioned here, and photos for many of them, as well as many, many others. After you spend a little while looking at all the plants on their website, you'll have all kinds of ideas about what you could plant for a privacy screen. I second the idea that a mixed hedgerow is healthier because one disease can wipe out a monoculture of one plant variety. Also, diversity attracts more wildlife like birds and butterflies, for example. Dawn Here is a link that might be useful: Sooner Plant Farm

Evergreen or deciduous? For evergreens, you're limited a little by our climate. You didn't mention how much sun it will get but I'm assuming a new subdivision and full sun. Also, you need to keep in mind that the more narrow the plant, the more plants it will take to complete the hedge. I just did a landscape plan for a large estate. The 120' hedge of Columnar Hick's Yew (it's in shade) on 2 foot centers at $100 per plant, well, you can see how expensive that gets fast. Some less costly shrubs that should work for you would be Juniper or Aborvitae. There are a lot of different varieties that would work but I'd look for 'Witchita Blue' Juniper or 'DeGroot's Spire' Aborvitae. If you are buying them all at once, you might be able to have a nursery order them in for you and negotiate a wholesale price since you'll be buying so many. Retail price on a 2', 2 gallon size DeGroot's Spire at Glover Nursery is $24. You could also do a 'Graham Blandy' Boxwood. For deciduous shrubs, you have more options, some of which include 'Fine Line' Buckthorn, 'Helmond Pillar' Barberry. I would really encourage you to do a mix of shrubs. It will be more interesting over time and more forgiving if something happens to some of the shrubs. If you do all evergreens in a straight line, you risk 'missing tooth' syndrome WHEN (not if) a plant dies. Vary your line so it's not perfectly straight and a mix of a couple different shrubs and it will all look good.