I've got a Gateway laptop that is a couple of years old...the DC jack inside the laptop is worn apparently (won't charge battery or start up w/ AC cord). I bought the replacement on Ebay for a measly $3...how much would it cost for soldering material to do the job myself? Or would it be cheaper ($100 estimate from two different terrorist PC nerds) to pay to get it repaired. I have computer experience...I was able to asses the problem...built/repaired computers before but soldering is new to me. Someone told me about Radio Shack...they solder parts for a fee/sell soldering parts?