Now you've overloaded the poor soul.
Remember they're a P&S upgrader.
My strong opinion is that if I were suggesting a camera to someone with just that much money who had any intention of learning photography, K20d hands down. If they had less money I'd weigh if they should have a K10d for most of the same reasons.
Forget about super teles: if you want to buy one of those multi-thousand dollar things, you're going to need to be buying another body if you buy a D60 or a Rebel, anyway, and replacing kit lenses and a few nice affordable primes will not really be an obstacle.
That's my rationale, anyway.
I wouldn't be fussed about size: some who've started on entry-level bodies think it's big, but it's... Camera-sized. Actually, about the smallest APS-C camera out there with the two control dials. The bit of extra weight and heft is actually good to have in your hand, helps your photos.
Which dials I count essential for students. (Lots of buttons may be intimidating, at first, but it's a whole lot more straightforward than trying to keep track of things that are buried in menues. Camera makers won't put a lot of buttons on a camera that doesn't have at least one darn good use: they'd much rather have fewer parts to assemble. That's part of why you usually pay for the privilege. A lot, in the case of many cameramakers. )
Anyway, the general notion I operate under, and I'm a pretty serious photographer, is that if I end up getting paid enough and doing the kind of work to need a super-lens, or more performance otherwise, either Pentax'll have what I need or not. Whether I'm having to replace an entry-level Nikon or upgrade a K20d by that time doesn't really add up to a whole heck of a lot of difference except what I'll have been having to live with in the meantime.
I see the K20d as one of those models of camera that has hit an important plateau: it may not be *the* fastest AF ever fitted to a tripod screw, but it'll do.
it *was* my upgrade path till I managed to get one at these sorts of prices last year, all unexpectedly.
Don't let anyone tell you the weathersealing is useless without a weathersealed lens. A few hundred things that won't go wrong aren't nothing to *me* anyway: ...One can treat this camera like one could always treat reasonably good cameras in a bit of rain or with wet hands: protect the lens and not worry about raindrops getting funneled into computer parts. It makes it a *whole* lot easier to cope with rain like one always used to be able to, before everything got computerized. That's not nothing. Of course, yeah, if you *do* put on a weathersealed lens, you're on a whole other level of not fussing with baggies, though. I can see having some fun with that: I've got my eye on one of em, myself. (Who would want a weathersealed fast 55? Ratmagiclady, that's who, with bells on!
Now stand and deliver with that 28, Pentax!
)
As for what lenses to suggest, the kit lens 18-55 II (this is the non-weather-sealed version, the new WR is probably the same lens or at least as good) is about the nicest kit lens going, and as cheap to obtain as any. I wouldn't have bothered to buy it, myself, if it didn't come free, cause I have other tastes, but it does quite well in the middle of its range. I'd also suggest a prime lens like the FA 50/1.4, which is just beautiful and can still be had cheaply or the FA 35/2 which is also lovely and gettable.