Questions about Panasonic TC-P50G10

[MasterShake]

All,

Long-time lurker, first time poster.

I've been looking at getting a new tv, and the Panasonic P50G10 has really caught my eye.

Saw it at BB, playing one of the Pirates of the Caribbean films, and wanted to get some feedback on it:

Question 1:
How do non-1080p sources look on it? Looking at different TVs and in-store displays for so long, I feel that a lot of TVs looks really good playing a Blu-Ray title, but not all look as good handling a "regular" source. For example, how does Time Warner digital cable look on this tv?

Question 2:
Gaming-wise, I have all three systems (360, PS3, Wii). I'm dubious about the "game mode" - does it actually improve how games look?

Question 3:
How is the reflection? I noticed some in the display unit at BB, but then I can make that complaint for virtually any TV I see in BB. :-)

Question 4:
Is it worth bumping up the 54" model (TC-P54G10)? I can get the 50" at BB for $1500, or the 54" at Sears for $1800, plus tax and any extended warranties.

Looking at NexTag, it looks like I can get these for about $1300 and $1600, respectively. However, I'm leery about buying a TV from a website due to the potential hassle if I need to replace it due to bad pixels or whatever.

As such, it appears to be about a $300 between the two. Haven't been to Sears yet, so I haven't had the chance to see the 54" in person.

Question 5:
Are there any other TVs in this range that I should be looking at?

If it helps, my primary viewing habits are:

1. Films, mostly Blu-Ray or anime/Adult Swim on regular DVD.
2. Sports (NFL, MLB, NHL, soccer)
3. Regular TV shows (mostly network at this point: 30 Rock, The Office, etc.).

Current Setup:
My current tv is a 32" Samsung LN32A450:

http://www.samsung.com/us/consumer/d...LN32A450C1DXZA

Other than motion blurring, it hasn't been a bad little TV, but it was meant as a bedroom tv when I had roommates, and now that I'm in my own apartment, I'd like something a bit bigger.

In addition to my consoles (my PS3 is also my BD player), my receiver is an Onkyo TX-SR606. Other than the Wii (composite) and speakers (standard audio wiring), I currently run everything via HDMI into the Onkyo, and another HDMI from the Onkyo to the TV.

Other Comments:
Looking at the 50" in person, I didn't notice the flicker that was discussed in some previous threads I found here. Anything else to look out for?

To me it had a really nice, crisp display, minimal blurring, both bright and dark colors looked gorgeous.

Sorry for the length of the post, just trying to get an idea of what to look for. My current tv is my first HDTV, and since it was an unexpected gift, I didn't shop for it nor see it in-store, so I'm finding it hard to know if what I see at a BB is realistic of how it'll look at home.

I got both my receiver and speakers after reading reviews/suggestions here, so I'm hoping to get some good advice on a television as well.

Thanks in advance!