yeah i have the ixus 70 very good camera was gutted it didnt come with a case but the good old bay sorted that for 10 pounds delivered
i really like the feature where you can select the colour you want the camera to capture then the rest of the photo is in grey ie select green take a pic of a tree the foilage will show green but the background will be grey it can be quite effective iam guessing the 75 has this though as they are basically the same camera as the guy said above one has a bigger screen one has a viewfinder and is slightly smaller
they feel very solid as well
i got mine (ixus 70)from argos for 139.99 and a 3 year breakdown for 24.99 you can get them cheaper online though but i wanted a extra guarantee for mine and a shop i could go back to if it broke so didnt mind paying a bit extra i also had a 2gb sd card from a previous camera id just sold on ebay so didnt have to worry about that little extra
i do prefeer it with the black ring around the lens though mine is just plain silver
have a good1 mate