Hot air is sometimes a bit rough when I just want to rework one part. I've found IRDA welders on ebay that seem to have a hand-held "wand" with an IR bulb that should be able to heat up a small area. Has anyone tried these for SMT re-work?
Can you show a photo or explain in what case its a bit rough? You can kapton tape or aluminum foil surrounding areas if you don't want them to be heated as much.
There are also small nozzles available.
One issue I've read with the IR wands, is that temperature can get very hot quickly (which is why they show a thermocouple attached to the IC). With hot air, at least the set temperature of the air shouldn't be exceeded in most cases.