beat what ?? can ur friend beat mi...:bsmilie:... just joking ah im sure he/she can...aya any camera can produce good images, only difference is AF speed, iso performance, handling ergonomics, maybe colors and dynamic range...
u might not like my comments cos i see too many of these thread comparing these and that which is kinda of funny... accolades is not given to 1 who has the best equipment but the work he or she can produce... its just my 2 cents worth... hope u take it as a pinch of salt...
it really depends what type of photography u r into or what u are after... i give u D90/K20D, maybe the pics might become slightly better in terms of color(this can be tweak), iso and have more detail, but are u a better photographer ??
a good pic is more about how or where u stand, have a good eye, how u look at things, great imagination creativity and concept, understanding of light, good at composition, angle and perspective, be difference from others etc etc and the list goes on and on... but none of it has to do with the camera...
just ask any pro... the execution is the easy part, its the planning, creative thinking, lots of time and effort that is the hard part...
D3/D700 also beat D90, why not change to D3/D700 instead... make life easy...:bsmilie:
bottom line is, use what works for u, buy what u can afford...its very simple, leave the difficult part in pursuing ur master piece...enjoy ur K100DS la... :thumbsup: