Like everyone else has said, it's probably better to just build the kit yourself piece meal.

The tools you need will depend on what kind of bike(s) you plan on working on. These are the tools that are "bike specific."

-chain break~ $6
-crank pullers (you will need these to remove your cranks from the bottom bracket)~ $12
-cassette (or freewheel) tools to change your cassette or freewheel~ $12
-chain whip (x2 if you have an old style cassette)~ $10 each

those are basically the only bike specific tools you will need in the beginning. the rest of a modern bike's tool needs will consist of a wrench set and set of hex keys (allen wrenches).

good luck!