I purchased the Sony 46W5150 when I saw that the price was actually less than the 46V5100. I am so glad that I did since the price went up to more the next day. I received the TV via a freight shipment. The set was in perfect condition when it arrived.
The w5150 is the same as the w5100 except it has a longer warranty (18mth vs 12mth). The picture is fantastic with inky blacks and excellent color. The Internet enabled features are a bonus. The biggest thing I was looking forward too for the Internet enabled set is the Netflix on demand, however, it is not available until sometime in November 09. I was happy to find that the TV will pull video from my media server; this saves me from having to turn on the PS3 to get to my stored media. I haven't tried to use the USB port for MP3s or Pictures since I have been able to use the Media server.
I love the look of the TV... it looks great on the wall with a very narrow bezel. The screen itself is not quite matte, but it isn't anywhere near as shiny as the Samsungs and some of the other LCDs out there.
Picture quality is excellent. Sony does a great job with their MotionPlus compared to some of the other sets I was looking at. The Sony option has a much more natural feel too and enhances the picture rather than making it look like video.
The sound quality is pretty good (especially for hidden speakers) as long as you don't turn on the SForce surround option. That seemed to really distort the sound quality.
Set up was a breeze. The TV set up my wired internet connection automatically and found the media server on its own. Since the set is internet enabled I was able to download the newest firmware and have that installed without having to call Sony etc.
Overall, this was an awesome purchase. The picture quality is a little bit better than the v5100 series and you get the longer warranty and Internet features. I highly recommend this set.
Get more detail about Sony KDL-46W5150 46" BRAVIA® W-Series 1080p LCD HDTV with 120Hz refresh rate.