Looking to Upgrade my E-510

The main reason why I would like to "upgrade" is that I feel like I'm not able to get the sharpness in my photos that I'm looking for. Maybe it's just me and my lack of experience. Maybe I just need to practice more with the lenses I have, but I feel like my images are always soft. I wan't to be able to get that crisp shot that I see professionals get all the time. I know I am not a professional by any stretch of the imagination, but I would like to work toward getting closer to one. So I would at least like to get a reasonably priced option that could get me one step further so that I know that it's not my equipment that is holding me back, but my lack of experience. I don't know, maybe I'm looking at it all wrong, but I kinda feel like I need some new glass to get me re-inspired with my Olympus to reencourage me to continue practicing and trying to improve.