I'v got a atten 858d (it is exactly the same as the first one uniserver posted, expect for it is branded differently) it cost me about £40 a few years ago and it's been really good, I have even replaced big BGA chips with it (Xbox 360 GPU's and CPU's, with the help of a board preheater (which looks rather like a griddle.... ))

I have heard of some quality issues with them, but i haven't seen any problems yet (my only gripe is that the cable from the unit to the wand is not heat proof, I can't count the number of times i have melted chunks out of the cable (I haven't got through to any of the conductors though))