Strapless V-Neck Dress Question. Please help.?

I want to make a strapless V-Neck dress and have never made a v-neck dress. how would I go about making one? Please help me out if you can. Thanks so much.

I'm going to be working with silk, and satan.

If you'd like to see my design where I'll be working with silk, and what I'm going to be making you can view it here:

http://photos-d.ak.fbcdn.net/hphotos-ak-snc1/hs210...

If you want to view the one I'll be working with satan you can view it here:

http://photos-c.ak.fbcdn.net/hphotos-ak-snc1/hs210...

Some question's you might want to know the answer too:

Do I have a dress pattern?

No. I plan on using my own design, listed above. I'm a beginner, and can sew simple things. I have never done a V-Neck on a strapless dress before.

Do I have a sewing machine?

Yes, but I'm getting a new one because the one I have is missing a couple of parts.

Do I know how to cut a pattern?

No, but I'm learning. That's why I'm starting easy. I'm making a few things before attempting this dress. I'm starting it in January.

Do I know how to stitch on a sewing machine?

Yes, for the most part. I'm still learning and am trying to broaden my horizons.

Do you understand the technicalities of the sewing machine?

Yes, but with getting a new sewing machine I will have to relearn. But lucky for me, I'm a fast learner, and can learn a lot very quickly.

Thanks for any help in advance. Any help is helpful. Thanks again.