I'm pretty much at the same point. If I wanted to go all out and really trick out my home, personally I'd probably build a multi-tuner Media Center box (possibly with the new Ceton cablecard tuners), and put extenders in every room (which at the moment would be two rooms).

But right now, I already have a Tivo and I love that interface. All I need is something that better incorporates other media. I'll be looking to Boxee to fill that gap, and from what I've seen it will do that nicely.

Unfortunately I have yet to see a date. They have a very vague release window (Q2, I think - or maybe it's "spring"), but I need something more concrete.