Thanks for the nice words. you know what my concern is to not waste money around because i can not afford another camera in next 3-4 years. I just bought a sony w210 2 months back and now again looking to buy a new one. that's my concern, if my next camera would not able to provide me the learing curve or produce the images i want it to I'll start looking for another one, People here is already think m crazy. I want to buy it for next 2-3 years and it should capable of keeping with me with my gaining knowledge of photography. final words
Nikon D3000 or Nkon d5000 or canon d450 or canon d1000 or G11
Get a Nikon D3000 or Canon 1000D with their respective kit lenses. Master how to use them. They have all the control that you need to be a good photographer. It sounds like you want to be a better photographer, but want to spend the least amount of money. If that's the case, go with the least expensive DSLRs you can find (such as the D3000 or the 1000D), because even the least expensive DSLRs offer full manual control, as well as automatic functions, as well as plenty of room to learn and grow with it. Spending more on a DSLR will just give you more bells and whistles, but they won't necessarily make you a better photographer. For example, moving up to a D5000 or 450D will just give you things like a larger LCD screen, or a swiveling LCD screen, or a couple extra focus points, etc. Whether or not these extra niceties are worth the extra money is really up to you. But just keep in mind that even the lowest DSLRs these days are more capable than many DSLRs from just a few years ago. So as a camera to learn and grow with, I don't think you can really go wrong with any of the low-priced entry-level models. You'd probably be better off buying a low priced DSLR, and saving your money to buy a couple books on photography, or an extra lens.
As for the G11, that's also a very capable camera, and probably would be the easiest camera to pick up and start shooting with. The G11 won't offer as good image quality as the DSLRs at very high ISO, but it has the advantage of being more compact and easier to carry around. There are plenty of great photos produced by G-series users. But it won't quite offer you as much room to grow as a DSLR. Many people use the G11 (or other G-series camera) as their lightweight and compact alternative to their DSLR cameras. Plus, many other people find that the G-series is really all they need.
But frankly, regardless of whether you go for a Nikon D3000, D5000, or a Canon 1000D, 450D, or a G11,
any of these cameras is going to be a big step up from a Sony W210 which is nothing more than a cheap point-and-shoot camera with hardly any user control. Nevertheless, it still doesn't keep talented and creative people from producing interesting photography with it:
http://www.flickr.com/cameras/sony/dsc-w210/