i have a 15 watt grounded one from radio shack, seems to work good. got a small point tipon it and using the thinnest solder i could find(seems to melt easier. be carefull with a 40 watt iron, iv'e burnt up some components leaving it on them for too long.(good for desoldering though) i also saw this today, looks like a decent iron, it's a weller so you can always get tips, and has four wattage selections. nice for someone not needing digitally controlled tip temp, but wanting some control over it. http://www.partsexpress.com/pe/pshowdetl.cfm?&PartNumber=372-120&DID=7&orefer=esf112503-372-120