beginner in photography? maybe you want to consider trying prosumer camera first? If you have been into photography sometime and wanted to jump into DSLR, you may consider mid range entry camera such as Canon 550D, 600D or the new 650D. If you are the just started photography and insist to go for DSLR, maybe Canon 1100D?

In terms of Nikon, it will be 3100 or 3200 for low entry, 5100 for mid entry. If just want to learn photography, can consider mirrorless or Micro four third instead

mirrorless and micro four third camera is similar, they are those small camera which can change lens. the difference is only the sensor size, mirrorless use DSLR sized sensor while micro four third use smaller sensor.

Check out camera such as Sony NEX series, Panasonic GF series, Plympus PEN series. They fall within this range.
550D if you want you still can get it. But it is all up to you as you can get a newer 600D as well. 650D has touch screen and better Auto Focus.

i think Kirill0201 is probably looking for DSLR that got a lot of informative guide that tells you wat each and every function does, which is targeting entry/beginner level. Those mid range and above is getting less about intuitive and rather just performance.

as stated by Everdying, it doesn't matter which camera you start with. if you willing to learn, even if the camera didn't have intuitive guide, you will still be able to master it. There's many books and forum out there to help you, and most importantly is you learn from shooting a lot of pics.

So choose the camera within your budget, and the one you are comfortable with then it is ok.