Best way to get rid of these bushes?

[GinnyNC]

Hello everyone!

We just moved into our new home and in one of the corners in our backyard we have these bushes that we really want to get rid of. I enthusiastically started cutting them with a spade and pulling them out by hand but the roots are ridiculous, so I gave up pretty fast, heehee. The patch we want to get rid of is roughly 60x60 feet, it would take forever! Here are some pictures:

[img]https://img41.imageshack.us/img41/6071/backyard1c.jpg[/img]
[img]https://img856.imageshack.us/img856/9607/backyard2.jpg[/img]
[img]https://img844.imageshack.us/img844/2720/backyard3.jpg[/img]
[img]https://img594.imageshack.us/img594/7115/backyard4.jpg[/img]

Identification of these plants, and any suggestions on how to permanently remove them are much appreciated, thanks!

I'm sure I'll be posting a lot more in the near future, as I'm super excited about beautifying our new yard

[bullthistle]

You lot seems to be in a new area so if you see someone around with a backhoe ask them if they could give you an hour to rip the stuff out. With sandy soil and native species sometimes the roots go on forever.

[applestar]

I thought they looked like bayberry but the flowers are wrong.... Do the crushed leaves or the flowers have any scent?