Most new cameras will mean more pixels like the 24 million that you get with my new Sony A77, all these pixels gives you great resolution but it also gives you much larger file sizes which some pc's/laptops might struggle with. My laptop is 18 months old and I never had any problems processing my 14 million pixel images from the Sony A500 but with my new Sony A77, I need to save my RAW files as a JPEG before I use some plugins/filters. So be warned you might need to replace more than your camera..
Welcome to my blog. My photography is on a tight budget like so many others out there, but through this blog I hope to show that great photographs can be achieved by all.