I have used Minolta films for years and have several lenses. I was disappointed when Minolta (Konica) came out with a digital and then bailed. Sony has taken up their cause. However, in the interim, after doing a lot of research, I got an Olympus Evolt. Aside from the array of lenses and accessories, support/training, availability, etc., the most important thing is that it is the only one I could find with a dust filter: " "Supersonic Wave Filter":
The "Supersonic Wave Filter" is a method of cleaning the sensor which involves making it vibrate at a very high frequency, this vibration causes any dust or dirt to literally drop off the sensor surface and on to a sticky tape material (which apparently has been used in conventional SLR's for some time now). This built-in cleaning takes place every time you power up the camera and can also be invoked from the camera menu. (DPreview.com).

Additionally, the newer evolt 330 takes XD and CF cards and has the ability to have "through the lens" viewing on the LCD monitor.

Mike Carlson, CFI, CFEI, CVFI, CATI, CPP,
Chicago, Il