PowerBook power adapter not working

I have a three year old PowerBook and lately the power adapter has not been cooperating. I have to turn the connector around a lot to get the green (or amber) light to show that it is actually charging. I have tried this with two different power adapters: one would not charge at all, the other is very picky (as I said, I have to have it connected just perfectly to the computer or else it won't charge). So I am afraid it might be the PowerBook. Seeing as its out of warranty (and no Apple Care), what are my options? I am just worried that pretty soon I will not be able to get it to charge at all and then it won't even be usable.