I don't want to insult you, so please take this as constructive criticism. I think the first basic tool you need is knowledge. So, try a DVD or CD on soldering, or even lessons from a pro. Silver soldering is not the easiest thing for a newcomer, if you want good results. If you can afford the time, and you are located east of the Mississippi, I would recommend a class at Holland School (www.lapidaryschool.org).
Once you get the knowledge of how to do it, than that will also answer the question as to what other tools you need.
I really enjoy making things from silver, and encourage you to explore the possibilities before you.