I must say, powell, I agree with Kleiber (as always, 'cos she is fab!). A dog is a minimum 10 years' commitment, and I am talking emotional, financial, social...If you are serious about dog ownership, you make a fair few sacrifices to ensure the welfare of your pet.
I don't know anything about you, and I won't presume, so just consider what would happen if you got a job with long hours? Or had to move away or travel back and forth for long periods of time? Or, as Kleiber says, if you just wanted a holiday? You either have to pay expensive kennelling fees and risk upsetting your dog, find somewhere dog-friendly and put a lot of thought into the type of holiday you have, or just not go.
I only speak from experience, as a 22-year-old part-time working, university student with a wonderful Border Collie, now aged almost 4. When moving house, we spent a long time trying to find rented accommodation that would accept pets, my partner worked nights so Jack wasn't left alone excessively.
I know you didn't ask the question in order to be lectured, but I see too many cases of unwanted pets not to lecture!! There is so much to consider, and as showcatbenga says, the dog will still be there when it is hailing outside, or when you have a hangover, and they aren't ready-made, a lot of work goes into responsible dog ownership.
Just please think long and hard. Lisa.