.....I have little knowledge with SLR's and i would like some help in buying my next model which i hope will be tomorrow from amazon.com.
I'd do a bit more research and reading "tomorrow" is quite unrealistic if you want to make an informed decision.
But if you do want to make a quick decision here is how you decide. Look at the kit of equipment you would like to have both soon and in three to five years. Pick out the lenses and maybe a strobe and whatever else you might want. next after picking out a set of 3 or 4 lenses ONLY THEN start to think about a DSLR body. The lenses will pretty much dictate which bod you buy. So many people decide of a body like (say) a low-end Canon and then they go lens shoping only to find they like what Nikon offers. or the other way around. Buy either Canon or Nikon. Don't look at the others unless you have a real good reason
So how to buy a lens? List the subjects you want to shoot. think about the light they are in. You wrote the word "Safari" that means wildlife. Be warned that wildlife is the most expensive type of photography and places big and expensive demands on a lens. You will be wanting a fast f/2.8 lens if you can afford one. That lens will cost a bit more than the DSLR body so choose it carefully. Don't buy a dslr body untill yo've decided.
To tel the truth I'd hate to have to make up my mind so quickly. Once you buy (say) a Nikon, you will buy Nikon lenses and then when it's time in a few years to replace/upgrade the body you will have all these expensive Nikon Lenses so you will buy a Nikon Body. The cycle continues for decades. You bether like the company you buy from enough to trust that you will like whatever they have for sale in 15 years. Lenses last a long time. 20 to 30 years is not unreasonable at all. DSLR bodies not so. four years is pushing it. Technology changes so fast you simply will not want a five year old DSLR body even if it works well. But good lenses are nearly lifetime investments. So choose accordingly.
If you are going to be shooting wildlife it's time to do some serious research on lenses. Know what focal lenghts and f-stops you will be needing and if you want "VR" or "IS" or if you will need a tripod and ball head and what you budget is going to be. Costs range from thousands to hundreds and you should understand the tradeoffs. Expect to sped at least a low four digit figure But I doubt you can become educated enough to make an informed decision in one day. This is what GOOD retailers are for. They can listen to your needs and match you up to a system.
Notice the word "system". That is what you are buying. Don't think "camera", think "system": A body (or two) a few lenses, some filters and memory cards. Software for editing and catalogging so way to make prints ad a bag to carry it and (I strongly suggest) a hard case to store and transport it all. Thwe system has many parts that you ned to shop for. Chose a Lens or two first.
