Wanting breast implants and whether it's right for me!

I'm a mother of 3 children and I never really had big breast to begin with, but after each child they got a little smaller each time. I some what have a complex about my breast and just want to feel a little more confident about myself. I wear a 36B and would like for my breast to be fuller and stand out at attention. I want to wear those tops and dresses wear your breast just look like WOW in the clothing. I think I would like a 36D but not really sure. I don't want to go to big and I still want it to look like it's mines. I also don't want it to be too costly. I'm scared at the idea of having it done due to the fact of people saying you have to redo it every ten years, is that true? I'm scared of it leaving scares behind, of whether or not I will like it, will I be happy in the end and the safety of going through the process in the first place. Do I do saline or silicone and which one is safer and which one is better? It seems that with the recovery process and the follow-up that it would be safer to stay closer to home? Is it cheaper and/or better going through a regular doctor or finding a hospital that does it? I need some direction on where to go and what to do next!