If you are planning on using the printer for small business use, look at the 4300 since it does have the second and larger black cartridge that is used for text only. I have both the MP530 and the MP 830 which are the AIO versions of the 4300 and I wouldn't trade them for anything for my small business.
I'm looking for an all purpose printer for a few photos, but mostly web pages or price lists for my small business. I read that the 4300 prints faster with better quality for text, but that the 6700 is better at photos (which I would expect). Does anyone have experience with both? Is the photo q of the 6700 just a little better than the 4300, or decent difference? I usually send my photos to Shutterfly and don't know if I would really use my home printer for all photos, espectially as services have gotten cheaper. I also do my editing on the PC, so I'm not sure if I would use the stand alone editing on the 6700's tiny screen. I'm having a hard time justifying the extra $100, especially since the reviews seem to favor the cheaper 4300. Any perspective would be appreciated