Originally posted by ScooterMaxi Jim Take a look at the features of all three current camera designs (K-3, K-5 series, K-30/50) and think through how you are likely to use these cameras. For action shooting and external flash, it appears that the K-3 will be better due to AF and flash-related improvements; K-5ii et.al. might be slightly better for landscapes and has a nice quiet shutter; the K-30/50 is a bit loud and not quite as well built as the K-5 or K-3 but is much better for using the live view option and manual shooting which can be a good option for improving your shooting technique - and allows you to spend more on glass which will be more important in the long run.
If you plan to hold on to the camera as your primary shooter for many years, the initial cost difference of the body is less important. If you are building a system for the future, greater emphasis on quality glass is your highest priority. (You tend to keep glass for decades - and they keep their value, bodies come and go.)
I second this.
Spend the cash on the glass (FA Limited's, can't really go wrong) and try and find a K-5 IIs. I'm terrible at photography but find the combination of K-5 IIs and FA 31 and 77 make my shots look almost professional. Most shots in reasonable light are keepers.
I found through bitter experience that you can spend a lot of money accumulating mediocre lenses thinking you're saving money by cutting such corners when actually it's best just go straight to the finest glass available and perhaps have only two lenses. Pentax-FA 31mm f/1.8 Limited and Pentax-FA 77mm f/1.8 Limited. Depends on what you shoot of course.