Olympus leses are expensive and they have less primes that Canon/Nikon/Pentax. More, Oly cameras have a cmaller viewfinder so they are not the best solution for manual focusing. For me even Pentax's primes are too expensive so I use manual focus lenses made by Pentax, Cosina, etc. and the kit lens (the only DA) and a tele FA zoom. Except the DA I can use the oters on film camera havinf this way a Pentax full frame without any incomatibility. More, I used the DA in film camera and it doesn't show the vignette between 25 and 55 mm. So it's a cheap wide - normal lens but darker than a prime.
My Pentax film cameras are manual focus ones because the AF camera's were too expensive for me. Which system offers the same compatibility lens-camera and camera-lens (on a K1000 can be used a FA AF lens without any problem and the kit lens - or any other K Pentax bayonet lens - from the K1000 ca be used on a Pentax dSLR) ?
A superior than K20D and a K2000D an inferior camera than K200D would be a nice move from Pentax. This way the pentaxians would have more from where to choose. More quick and more "power" in the flag-ship and less features in the smallest K2000D and an even smaller price for the camera to be even more affordable the the K200D.
For the moment K20D and K200D offers the best quality (&features)/price rating than any other camera brand (dSLR). For that price which camera offers you shake-reduction, weather-sealed body, metal body (platic covered), top LCD, 11 focusing point (9 cross-type), big bright viewfinders (K20D especially) - BTW, Pentax cameras has the biggest viewfinder among the APS-C sensor cameras
see
Digital SLR Viewfinders: Size, Magnification, Coverage, Crop , vertical grip availabe for both, AA/R6 batteries for K200D (for me it's great - the cheapest and the most common "power source"
) and other features present only on a Pentax dSLR , all in one body ???
I like the cameras Pentax makes, very much.