Frankly, I believe that with some tweaking and reading of the manual you can likely get "eye candy" shots with your SD50. It probably has many more features than the newer models (which they seem to offer less and less features as they "upgrade" models, the only thing you really get is higher resolution and increased pixels which really don't mean much if you're only posting them on the internet. Try playing with the white balance and invest in a tripod.
Then again buying new toys is fun too
