The title says it all. Just got my Rebel XT, looking to get some lenses, wanted to know if people have gotten/used tamron lenses, and what their opinion was vs canon. I want to get some canon glass, but right now it is cost prohibitive, because when I do, I am going to invest in the quality canon glass, but to start out, I am going to go with a lower priced tamron or equivelent. I am looking at the 28-80 ($149) 80-210(169) 75-300($199) What are people's experiences like? Thanks.