just be warned...most people have some problems setting them up just because everyone has a slightly different setup (home construction...neighbor networks etc.)
Buy it...and just designate a day or night to it...take your time...go to apple support website..and you should be fine.
i actually do that for most of apple's products. I dont try to get things set up before a meeting or show or something. I take my time..try to read up on common problems etc. Apple products are a little tricky to get use to..but they are good products.
If you still cant figure things out.. The apple store is awaiting.