newer weller plain-jane soldering irons have temperature control (but no temperature adjustment. They're pretty nice.
That said, I use the WESD-51 and it's excellent for the money. I would recommend a good station over a pencil if it's your only soldering tool. I also generally advise people to not cheap out on wattage. General purpose irons are often asked to solder 3 or 4 12g wires together in a big bundle or something similarly difficult, and a lot of power helps immensely.