Cheryl,
You could always get what most homeowners put in instead of a wooden
fence, and that's Arborvitaes.
You plant the Arborvitaes about 3 feet apart, and when they get bigger,
they grow not only up, but across as well, and form a natural type of
fencing.
There are DIFFERENT TYPES of Arborvitaes for you to choose as well. You
can get something like the "Emerald Green Arborvitae" which is a SLOW
grower, that gets to a maximum height of 10-15 feet.
You can get the "Dark Green Arborvitae" which grows a little faster, and
can get a maximum height of 25 feet tall.
Or you can get one of the fastest growing Arborvitaes which is called
the "Green Giant Arborvitae", which grows 3-4 feet PER YEAR, and can get
35-50 feet tall.
You could also get a type of Evergreen Shrub called a "Blue Point
Jupiter" which grows 10-12 feet tall, and 6-8 feet wide. You plant these
6 feet apart from one another because of their wide growing widths. The
"Blue Point Jupiter" has a nice Blue-Green foliage color like the
"Colorado Blue Spruce" Christmas Trees.
Here are some images below of natural Arborvitae fencing:
Arborvitae Fence - Google Search
http://www.google.com/images?hl=en&g...borvitae+Fence