His book may be worth looking into if you are really deadset on grapes.  Florida may be hotter than you but it is also humid so not sure how much transfer it would have for NC.

http://www.quisqualis.com/tv02flagrape01.html

Maybe you saw this next link but I thought it had some information for you.
http://www.ces.ncsu.edu/hil/hil-8202.html

i want grape vine, but not dead set on them. already killed mulberry rootings and hardy kiwis that i got last yr. my green thumb only goes as far as figs. with bunch grapes, it seems, it will need lot of chemical and minute attention through out the season. muscadine seems like a logical solution to have grape vine and not have to over work to keep it going. 

Pete,

I planted a Black Spanish grapevine.  It is an heirloom variety from the Deep South.  It is resistant to most grape diseases.  In Texas a wine industry is sprouting up around this grape variety.  Black Spanish has small, sweet, black, seeded grapes.  It makes a sweet, port-style wine.  When grown in hot summer climates the grapes are sweet and enjoyable for fresh eating if you don't mind the many seeds.  Personally I don't mind seeds, and I actually prefer a seeded variety because of the many health benefits of grape seeds.  Something to think about for your situation.

My wife loves Concord grapes. A new 120 ft Cyclone fence will go up in the spring and I will plant them like weeds along it for her.

I think I'm going to plant some of the thornless TripleCrown blackberries this spring...they look like they can be trained onto fairly neat trellis-type setups. We picked wild dewberries in ditches around Mobile Bay as kids. Won't miss getting shredded by thorns. 

I planted two issai kiwi and one Ken's hardy red kiwi, along with two males nearby. All the vines were a couple years old when I planted them last year and one issai had a few small fruit when I received it. They tasted great, like a full size kiwi concentrate. They were watered every week the first year but only ocassionally after that. I'm hoping to have a few to eat this year. I think fruit production is also based on watering. I recall Roger Meyer of jujube fame had kiwis but switched to jujubes due to the high water requirements of kiwis.

I also have concord, merlot, cabernet sauvignon, and zinfandel grape vines. Out of the grapes, concord performs the best.

I dont have any seedless, because they are not as good for us as seeded. I forget why specifically but can get back to you on that if you wish.

In hindsite, I would have only grown muscadines and scuppernongs. They are less trouble, more productive, and the japanese beetles are not as fond of them.

I have bronze fry, bronze tara, pineapple, and wild/unknown variety scuppernongs. They taste very much like concord grapes. 
I also planted cowart, noble, and nesbit black muscadines last year.
I bought most of my vines from Isons. They also have a wonderful spiced muscadine butter!
http://store.isons.com/muscadine-vines
I was checking regularly in anticipation of the grapes being ripe. My wife thought it would be funny to hang a plastic bunch of grapes on the trellis to observe my reaction. She was right.

For a trellis, I use t posts and a hand driver ( no digging and pouring concrete) from Tractor Supply along with bolt-on cross arms and gripples from Orchard Supply in California. Gripples are great! I can easily take everything down and put it up elsewhere. Photo is of one of my concord grape vines.

http://www.orchardvalleysupply.com/trellissupplies.htm
http://www.tractorsupply.com/product__10151_-1_10001_12961
http://www.tractorsupply.com/en/store/studded-t-post-8-ft-125-lb-per-foot
 
 

Pete - I placed an order for the first time with double a this winter for spring shipping and can let you know how reliable the company and products are when they arrive. As far as customer support they have been great. They helped my family chose a gift card during Christmas and have been awesome to work with on the phone. They also provided an organized invoice that they mailed me with a paid stamped onto it. I love keeping records!

Scarecrow- could the small grapes used for raisins be lakemont? Thompson is also another well known raisin variety. I live in a vary humid and fairly hot climate. NE Indiana. With quite cold winters. 24 grapes ordered this year so I will let you know what makes it through the summer. 

Scarecrow- could the small grapes used for raisins be lakemont? Thompson is also another well known raisin variety. I live in a vary humid and fairly hot climate. NE Indiana. With quite cold winters. 24 grapes ordered this year so I will let you know what makes it through the summer.