Far as I can tell you should be fine with a 500. We have a few of those and an A500p which also plays BETA SP. I doubt there’s much difference between the new decks and the 500’s, as HDCAM kind of took over shortly after the 500’s, so most people would now buy a HD machine that plays digibeta, etc aswell.
That said, the 500 has a much more solid feel to something like the HDW-M2000P. the new ones feel very ‘cheap’ in their build, despite the price tags! (Presumably the build quality is the same for the 2000 digibeta decks?)
Oh, we’re in the UK btw. Don’t know how much difference that makes (PAL vs NTSC, etc.)
The only other difference I can see is the the 2000’s have a slot for a memory card to store menu settings, etc on. Guess it depends how often you switch settings and how quickly you need to do so.
But we use a combination of 500’s daily for broadcast and they seem to do the job.