danb35:
A web search for "rigol ds2000 hack" will bring up quite a bit of relevant information, and there's a long thread on eevblog.com on the subject.
...and rather than play hide the ball, here's the link to that thread:
http://www.eevblog.com/forum/testgear/sniffing-the-rigol's-internal-i2c-bus/
I've not personally tested the increased bandwidth or added features, but the scope's status page states they're active. I can just confirm that the scope seems to work well for what little I've used it for so far.