I want to purchase a new DSLR and I'm very confused about which one to buy?

I'm confused first of all between which company cameras are better and price is not a issue regarding this and can you also Tell me which of the two Nikon D5100 or the Canon 60D is better. Please also suggest which lens is a good one to start with and is the 70-300 lens also a good option to start with.

While I'm quite sure you will get more than one answer telling you that one is better than the other, I'm going to give you the truth. Neither camera is better than the other. They both are top of their class advanced amateur cameras. Their specs are very close to identical and only have slight variations. They both will take superb pictures and video.

The only reason anyone would choose either brand would be past experience and loyalty. I personally would purchase the Canon because I have always owned Canon SLR cameras and have experience using them. Also I have Canon lenses and accessories that will work with the 60D. If you have never used or owned an SLR camera before you do not have any baggage that dictates brand preference for you.

That being said, here is something to consider. Owning an SLR camera is not a one time cost purchase. The true joy is that you can, and most likely will, purchase various lenses for your camera. These lenses will range in price from a few hundred dollars to several thousand. Compare prices between the Canon and Nikon lenses and see which one better fits your pocket book. Both companies have their entry level and professional grade lenses. Plus you will also have the option of purchasing third party lenses which generally cost less but sometimes lack the quality of the brand name lens.

As for the 70-300mm lens as a starter lens; It is a good telephoto lens but will not satisfy all your needs. It's main purpose is to allow you to photograph distant objects from a far. It can be used for all sorts of photo types but isn't considered a general use, or walk around, lens. The focal length of a general use lens will range from the high teens (17-18mm) to the low hundreds (100-135mm.) Many lenses are sold with this zoom range and will give you greater flexibility when photographing different subjects. To maximize your enjoyment of your new camera I would recommend purchasing both a general use and telephoto lens to start with.

Trust me, which ever camera you choose you will not be disappointed. Both will have a learning curve. But once mastered will produce high quality photographic work. Just remember that cameras do not take great pictures, that is the photographer's job.

As a first-time buyer, you could seriously just flip a coin regarding brand preference. The only reason to buy one over the other is if you already have compatible equipment (lenses, flash heads), or access to them. You will spend much more time just figuring out how it works, than with any minute differences in quality.

If you must, here's a comparison between the two models:
http://snapsort.com/...ikon-D5100

A 70-300mm lens is okay to have if you *know* you need a telephoto lens. A 55-200mm lens is often a less-costly alternative if you find the kit lens (usually an 18-55mm) too restricting.

I think you want someone else to make these decisions for you so that you don't feel it's your fault if you later think that you bought the wrong equipment.
Your money - your camera - your decision - which might well be the right one.
Whatever you buy you have to learn how to use it.