Help choosing a receiver

[trekdude]

I've been trying to decide on a receiver for a few weeks and my head is spinning.

Here's my choices
Pioneer VSX-918
Yamaha 465
Yamaha 663
Onkyo 507
Onkyo 606

My needs
HD-MA decoding - the Sony BDP-350 doesn't decode it
5.1 sound is fine, 7.1 won't work in the layout of my house
HDMI connection for Comcast HD
The ability to send DVD audio from the blu-ray player to the TV for some videos. My daughter's Elmo DVDs don't need to be in surround sound.

I'm leaning toward the Pioneer since it is the cheapest and my needs are really basic, but open to suggestions. All of the receivers are in the right price range and I don't want to spend more.

Any recommendations or opinions would be helpful.