I've been noticing for some time some pesky, stubborn dust spots on my pictures (generally around the top, which makes it easy to just crop them off, but annoying nonetheless). I stopped in at a camera shop & the nice camera people there confirmed that it was dust on the sensor itself, and STRONGLY recommended that I send it in to get cleaned (a whopping $60). When I checked the owners' manual, they do, however, have specific instructions on how to clean the sensor yourself. I've been reading up on it and getting both sides online, but wanted to hear some unbiased opinions from people who were trying to sell me anything (whether it be services or products!) So, here's my question... What do you do when your sensor needs cleaned? Do you cough up the $60? Or do you do it yourself -- and if so, what products/methods do you use? Thanks in advance!