I have just emerged from lens choice hell - and made some purchases that will probably keep my creative options open for some time.
I have one of the first version of the Rebel. Still love it. I got the 18-55 with it.
I chose the basic EF 75-300mm f/4.0-5.6 first, as I had few funds at the time. It was fun, though obviously just barely able to perform its functions. I have lots of pictures of soft birds! I enjoyed it nonetheless.
Last summer I purchased the EF-S 10-22mm f/3.5-4.5 USM to use on my trip to Cape Breton. I would have been miserable without a wide-angle choice in that landscape. I have been perfectly satisfied with it though I avoid the extremes at either end of its scope.
I finally replaced the 75-300 with the new
EF 70-300mm f/4.5-5.6 DO IS USM. I tried out this lens alongside the EF 70-300mm f/4-5.6 IS USM. Both were great, but I found that the DO a joy to handle, and decided to spend the extra. I hike a lot, and found the dimension of the longer lens awkward.
To finish the job I chose the EF-S 60mm f/2.8 Macro USM. It's lovely!
The weak spot is obviously the normal range - 50mm, though the original OEM lens will do in a pinch.
I read tons of reviews on these lenses - and proved once again that, if you try hard enough, you can find someone who will trash them. I was really not sure about the 70-300 DO, having heard bad things about lens flare, but Michael's good opinion reassured me.
No one seems to have much to say about the 60mm macro. I am looking forward to tiny abstractions.
I hope my presumption that Canon lenses are all good enough for a fussy old photographer will stand. I'm pleased as punch with my choices.