As far as I know, I think Yamabuki closed or is just about to close, Heather. I think Disney is putting in another restaurant in its place eventually, but no one knows what yet! Maybe it will be something to fit in with the theme of the new Victorian pier area in DCA?
Things may have changed, but the last time I asked Disney Dining about ESPN Zone, they said they could take PSs for certain times and then ESPN Zone handled the other times. Like, for example, Disney Dining could take a PS for ESPN on weekdays up until 5 p.m. or something (that may not be the exact time, but you get the idea), and then ESPN Zone handled the PSs after that time. And Disney Dining could not make any PS for weekends, if I recall. Again, it could all be different now - this was last December when I asked them, but they could take some PS and not all of them had to be done through ESPN. The only restaurant Disney Dining could not take any PSs for at any time is Rainforest Cafe.
Blue Bayou would be a nice place to go for a meal - great, moody atmosphere. The upscale Napa Rose in the GCH is a big hit with critics and DLR visitors alike. Rainforest Cafe is always a fun place to go. If you want something in the parks that is a table service but not too expensive, Wine Country Trattoria in DCA is nice, or Carnation Cafe in DL. DTD has quite a few places to choose from besides Rainforest or ESPN - Naples, Catal, Ralph Brennan's Jazz Kitchen, House of Blues, etc. Or are you interested in doing a character meal? Would your DH be up for that? There are 5 of those to choose from at DLR.