The Pentax K100D has been reviewed at Megapixel.net who loved the photo quality and ergonomic design of this model. They had this to report-

"There are only a couple of small regrets about the ergonomic design of the K100D. First, the TTL viewfinder’s eyepoint is near to the exit pupil and requires being very close to see the visible frame and the info clearly. Second, the LCD display on top of the camera is not backlit. In all other aspects, however, the relatively compact design of the K100D allows it to fit comfortably in hand. Its grip is well-suited to average size hands, and offers a solid hold of the camera. Similarly, the external controls are spaced sufficiently apart to make them easy to use. "

Pentax K100D 6.1MP Digital SLR Camera Shake Reduction (Body Only)
Developed as a starter camera for beginning digital SLR photographers, the K100D is designed to capture high-quality images with simplified operation in a variety of applications, including the documentation of hobby scenes and the preservation of family events. In addition to a sophisticated autofocus system that rivals the performance of higher-grade models, the high-performance K110D offers such outstanding features as a bright, clear viewfinder, an extra-large, wide-view LCD monitor, and 6.1 effective megapixels.

Featuring

6.1-megapixel CCD captures enough detail for photo-quality 14 x 19-inch prints
2.5-inch color LCD monitor; 11-point wide-frame AF
In-camera Shake Reduction (SR) system to combat blur from hand shake or low light
Auto sensitivity control up to ISO equivalent 3200
Stores images on SD memory cards; powered by 2 CR-V3 lithium batteries or 4 AA-size batteries

Power Source - Four AA (Lithium, Alkaline, and rechargeable NiMH) batteries, or Two CR-V3 lithium batteries Battery Life - Approximately 730 recordable images or 700 playback minutes with CR-V3 batteries Picture Modes - Auto Picture, Scene, Standard, Portrait, Night-scene Portrait, Landscape, Macro, Action, Flash Off, Program AE, Shutter Priority AE, Aperture Priority AE, Metered Manual, Bulb Scene Modes - Night Scene, Surf & Snow, Text, Sunset, Kids, Pet, Candlelight, Museum System Requirements - Pentium II Processor (Pentium 4 recommended), Windows 2000, XP, 250MB available Hard Drive space or more, PowerPC G3 or later (G4 recommended), Mac OS X (10.2 or later), 256MB RAM (512MB or more recommended), 250MB available Hard Drive space or more, 1024 x 768, 24 Bit color Monitor, USB port Shake Reduction mode built-in Dimensions - Height 3.6 x Width 5.1 x Depth 2.8 inches (93 x 130 x 70mm) Weight - 19.8 ounces (560 grams)
Read the full review