I was looking at the same objective a little while back. The one you reference seemed to be the 'standard' for what you outlined.
You can get them on e-bay for around $500 or so, but other than that all I have seen is about $799.
I was curious on the lower model which is closer to $250. Reportedly it is hard to control via IR (which was surprising, but I won't dispute peoples experience with this). I originally thought you could send the disc numbers via IR and use software to understand what disk is where.
I've been tempted to get the lower model, but for long term automation, apparently the more expensive one is the way to go (at list prices though it is almost 3 times the cost).
If you find more information I'd love to hear it, I'm still torn on the issue (and am still on other projects). You can tie some into MCE but I haven't done the research yet on that either.