I use paint shop pro x2. I use a P&S, the Canon S5. I think your Rebel should be able to outdo that all day long. I think almost all digital pictures (or the ones your gonna print or frame) could use some selective sharpening and touching up but that might just be me.
Here is a shot I got from filtered light coming in through my front door... (could use some backdrop smoothing)
and this was through the patio door, i think with bounced flash also.
Those photos are amazing! I love how clear his eyes are.