For what you need just do as missing link suggested go to radio shack or some other hobbiest store and pick you up an ok iron... either something in the 40-45 range or a multi ranged one say like he has thatsd 20-40 watts..... you DONT need anything fancy....... something with a few different tips may be nice it gives you ALOT of flexibility on what you can solder ....
That being said I LOVE my pace digital sensa temp iron

then again I got it for free lol