It can be very easy to get sucked into thinking that you always need the latest and best gear out there to produce professional shots, but you might be surprised by just how much you can accomplish with entry-level gear. This excellent video will show you the sort of food photography you can do even with basic equipment.
Coming to you from The Bite Shot, this great video shows what you can accomplish using just basic gear. There is no doubt that high-level gear can make it easier to get good shots or occasionally enable shots you can't get with more basic equipment. That being said, a lot of photographers can get caught up in thinking that they are being held back by their gear when more often than not, it is a lack of technique or creative thinking that is preventing them from getting the images they want. By investing time (instead of cash) in expanding your skills, you can save a lot of money that you would have spent on unnecessary gear and become a better photographer who has more control over bringing their creative visions to fruition. Check out the video above for the full rundown.
I have the exact same camera. Only problem with mine is that it wasn't in the best condition when I got it off Amazon. There are little specs on the sensor that are visible in the image when I stop down. Also the kit lenses I got with it aren't the best in the world, they're quite old and aren't very sharp so I'm working on getting better lenses before I get a new camera.
for the dust on the sensor just grab a cleaning kit, usually just the blower will do the trick.
I am looking for a cleaning kit but they're quite hard to find in my country.