Look guy - run, don't walk to the camera dealer where you buy your gear. Go ahead and purchase something now. If you get caught in that vicious cycle of, "well, I'm going to wait until the new models will be released, " well then you will consistently be a unhappy camper. Look at what you are missing at the current time - learning moments, family scenarios, special events, scenic shots...and whatever else is occurring. The bottom line is whether you get the D100 or the S2 Pro - both superb instruments in their own rite, you will have something that will last you for years...and it won't become outdated either! And if you feel that you must have the latest equipment when it eventually comes out, do what I do...sell off family members (although I'm now down to having to sell off my remaining pets also). Eventually I will be one lonely son of a gun!
Once you make the purchase, you will feel better about it, and your learning process will begin.