Yes, the camera matters. I have shot exclusively on the Canon 1D series for 7 years.
Cameras are only as good as the glass you put on them. I have a full array of canon “L” lenses that I switch between to get that perfectly crisp and perfectly lit photograph.
MAC and only MAC. I have three Apple computers that I actively switch between for graphics and photo editing. MACs are above and beyond the best machines photographers can use.