+1 to what Reuben said. Oh -- and if you are comfortable with 4/3, you may want to include the e-620 in the mix/ Admittedly, Olympus hasn't been focusing of late as much on developing their 4/3 line as much as their m4/3 line, of which I am personally still not a huge fan. But the e-620 is a real dark horse and not only has possibly the easiest to use menu system via their Super Control Panel, it also has probably the best quality entry level glass of what is available.
Otherwise -- as previously noted by quite of few of us responding to you ---- be clear on your next steps:
1. get into a proper camera shop and handle all your candidates. You will find nuances of the body design or menu system that will not sit well with you for some, while others will simply feel totally natural to you.
2. Don't get fooled into thinking that there is one truly "best" camera -- any entry level DSLR will give you the opportunity to take your photography to the next level.
3. Don't expect that pictures will automatically become way better just because you are shooting with a DSLR -- good photographers take good pictures, good cameras are only as good as the photographer behind them.
Enjoy the hunt. Let us know if you have other specific questions -- we are always close by to provide opinions/responses.