Originally Posted by ravensedge
I' m going to go with 3literbeater. It sounds like you have an excessive amount of air in the brake lines. You'll need to found out how it got there before actually doing any repairs.
What they said. Definitely sounds like air in the lines.. you should have a mechanic sort out the CAUSE of the problem before doing a stop-gap repair (some mechanics would just bleed the brakes and never stop to wonder why they had air in the first place - this is a recipe for disaster, because if the condition re-occurs you could have a brake-failure resulting in a collision or worse.)