I'm fifteen, and I'd be the primary care giver. What are your experiences with Westies? Is there much personality variation between male and female? Are they easy to potty train?
Also, do you know of any good breeders in the South Carolina region?
I'm the proud owner of a westie. They are intelligent, loyal, energetic, sweet, and they will make you laugh. They are also willful, but can be very obedient if you establish yourself as the alpha quickly. They enjoy learning tricks and pleasing their owners (especially if treats are involved), so plan on spending time doing that. For a really good (very accurate) guide on westies try this site: http://dogtime.com/west-highland-white-terrier.html
From what I can tell, male westies are more laid back than females if you are just getting one (two males can be a handful). Females have more of a tendency to snap than males, but again it comes down to training. My westie is very cool and laid back, but even he can get feisty– it's just a terrier's nature.
To be perfectly honest, they are not easy to potty train. It took a good 2 years for my dog to learn how to effectively communicate his need to go out. And while I'm being honest, part of the problem with potty training a westie is the owner. Westies have small bladders, so if you give them water plan on taking them out 15-20 minutes after and then again, for good measure, 30 minutes later. So it's 50% your dog learning how to communicate/knowing that the proper place to potty is outside, and 50% of it's you paying attention.
Here is a list of reputable breeders across the US: http://www.westieclubamerica.com/breederlisting.html
I cannot stress enough that you should do your research– asking a question here was a good first step. Next step is to read the guide above and then talk to reputable breeders. Westies are great, but like all breeds they come with idiosyncrasies and specific needs. Someone suggested adoption. I think that's a great idea too, but there's nothing wrong with wanting a purebred
Good luck!