go to sears and get some basic screwdrivers and wrenches and pliers. you should not been BB tools as the one the shop puts in should last a long time. buy bike spefic tools as you need them, crank puller, BB tools, third or forth hand.
when I worked in a shop, I figured out which of the shops tools I used the most and bout them as I needed them
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“One morning you wake up, the girl is gone, the bikes are gone, all that's left behind is a pair of old tires and a tube of tubular glue, all squeezed out"
Sugar "Kane" Kowalczyk