So how many $$
So it looks like two kilodollars or less should get you going. I think one was built at work this winter for ~3+ k$, but it has fast video and large raided HDs.
BTW, my "premiere" home system is a dual PIII 1.0GHz with 2.7GB RAM. It doesn't fold too fast, but seems to get (almost) everything else done fast enough.