Truth be told, there isn’t that much difference between a 7-year-old Canon digital SLR camera like the 300D and a brand spanking new 550D. Sure, the latter has higher resolution and better toys, but most people simply don’t need the extra resolution. What you need is a shutter that works, a mirror that will move out of the way in time, and a sensor without too many dead pixels. From there on out, it’s all about the quality of your glass (i.e. your lenses), the quality of your light (i.e. sunlight / flash / natural light / diffusers / softboxes / light filters / etc) and… You.
Great piece that's making me think about backing down from my plan to purchase a pretty high-end camera. Maybe I should get a entry level one and some seriously nice glass instead. Hum, more to think about.