Hey, I was one of those HD-A2 buyers last year too.
This year, you can always go for the PS3.
For me I just grabbed a new model from Sony, the BDP-S550. It has analog outputs so that I can have HD audio without having to upgrade my receiver to handle HDMI audio.
If you don't need analog audio (your Yamaha looks like it has HDMI ports, but I don't know their abilities), and you don't want a gaming system like the PS3, you can go with the Sony BDP-S350. I know that K-Mart of all places is going to have that one for $179 on Thanksgiving day.
You can get all of the Sony ones from SonyStyle.com and if you apply for (and use) a new Sony credit card, you get $150 back off of your first purchase from them.
Another popular stand-alone player is the Panasonic DMP-BD55.
All of the above get good reviews, it just depends on what features you need/want. Like I said, I needed something that could decode ALL of the HD audio formats and send them to my receiver via analog audio connections, and the first good player to do that (for a reasonable price) was the BDP-S550. If you want games, go for the PS3, etc...
Hope this helps to trim your list down...
