Weller make great irons - we use them exclusively at work. They're not that cheap new, but you can often get them for a good price second hand.
Otherwise, I've got one of these at home which has stood up to about a year's occasional use well
http://www.maplin.co.uk/module.aspx?...10271&doy=28m1
. They often have them on special in store (at least they do at the branch near me). Just make sure you don't buy their dodgy lead-free solder which basically doesn't stick to anything!