The Olympus Evolt E-510 is an excellent amateur dSLR. It fits nicely just above the E-410 and its slightly higher price is easily justified by its additional features.
The kit lens - the one used in this review - is of good quality, but the auto focus of the E-510 would likely perform even better with a slightly brighter lens such as some of the high quality lenses manufactured by Olympus.
Currently, competition in entry-level digital SLR cameras is intense. And while it may not have the most attractive price, the E-510 offers a number of features that should make it very attractive.