[What's_nitro?]

The Deans only need about 30W, but that's a bit low for bullet connectors since they make a much better heatsink. I have a 60W iron and it works great on 6mm bullets. The smaller stuff just gets done even faster. Instead of using solder and flux separately, look for "rosin core" solder. Radio Shack sells it, as does any hardware store. 60/40 is fine for R/C use. Always make sure the tip of the iron is clean and tinned. I use a 100 grit sanding sponge to wipe the iron off after every joint is made, and it stays tinned too.