hi
for soldering surface mount components people use different methods.
1. soldering paste and blowing hot air
2. using normal solder iron along with flux(liquid form)
u can use any method, but make sure that while doing ICs(micros etc),don't use high temperature.
i don't know what solder iron u r using..but usually there will be different size tips available in market for ordinary solder iron.u can get small size tip and fix to it...
if u think this info. is helpful, could u plz click on helped me button.
cheers
skr