new puppy introduction

Question
Hi - I have a 2 year old female English staffy who is an only dog and is spoilt. she lives outside during the day and she comes inside at night for TV time. she loves the beach and people.she doesn't mind other dogs, but at the beach she gets very excited and she lets other dogs sniff her but if they are there for too long , bigger or boisterous she snaps. a dog trainer told me she snaps out of fear, i tried socializing her alot, she just gets snappy if she doesn't pre know the dog , and hence it gives me anxiety, so now i just don't bother - we just do our own thing. she's not aggressive, she just snaps and walks away. we walk with two other friends and they both have dogs and no problem. cant work it out. anyway, we are having a baby next year and my husband doesn't want the dog inside at all next year. So we are getting her a friend tomorrow. we have decided on a Japanese spitz as its smaller, a male and they seem great tempered and not toy possessive as she is. so she will have company.
I just don't know the right way to go about it, have her meet the puppy on neutral ground, does it sleep outside in its own bed at night,or will yosh just go the puppy?
how do i introduce them, and then where will the puppy stay till they get along??

Answer
If there's any way that you can hold off on getting your girl a friend, please try to do so. THe first thing you need to do is to establish yourself as pack leader. Get your pack in order before you add to it. Your dog is anxious and fearful because she is insecure and not sure of where she stands or whether she has protection from her pack leader (you)>
Get her into a good obedience class, and get Cesar Milan's book Be The Pack Leader, buy it or get it from the library. Also go to Alpha Boot Camp on the web, just type it into your browser. It'll help you get started on helping your dog. Once you get her settled, THEN get her a friend. I'm sure she will benefit from the company. Think of it like this, you have a dog who is anxious and insecure with other dogs. Bringing home a new dog into her territory is not going to help her feel better. It would be sort of like, you being married and your husband bringing home another wife. It's always an adjustment and in your situation it will be a very difficult one,
Good luck
Cindi