I have always, or it seems like always had a compressor around the house. My suggestion would be to look to a larger size like a 5 to 6 hp with a larger tank. The smaller ones are fine if you only expect to use a nailer but, the chances are that you will want to use other tools once you have the air available.
I have a few CP tools, have found them cost effective for home or light use. However, they usually do not have the performance of the more expensive name brands. Very often the lower price tools will use more air and give less performance than the higher priced ones. In my case I have a mixture of qualities based on what I needed them for.
Hope this helps.