Humm...I'd stick with solder. Thats the only way to assure contact. As for the iron. I know Radio shack sells a kit for $8 that includes an iron, solder, small stand and a small tool.
As for DIY soldering tips...hit up google.
Click here.
If I were around I'd do it for free...but you don't live anywhere near here. Do you go to school? Perhaps there is an electronics teacher/prof who could help you?
But this is a very valuable skill to learn. I solder anything that I want to install in my car. That way I know the wires won't come loose.
You're not trying to do this with one of those "cold heat" deals are you?...I don't care for them. They didn't work for me.