CRAP! CRAP! CRAP!
My beloved 4:3 HD CRT just quit working, a pop then the power light kept flashing. I kept getting seven flashes on the standby power light followed by a reset click and then seven flashes again. After sitting for an hour it worked again, watched a movie and played some games. This morning I am back to the Sony Red Light Flashing Death again.
A maybe fix
This site offered an inexpensive solution:
http://k0lee.com/2011/05/fixing-a-sony-wega-with-6-or-7-blink-code/
I'm not too sure replacing the IC Chips for the power supply would even work. First moving the 200 pound Wega CRT out, disconnecting all the cables and discharging the high voltage HD Tube. Then waiting on the chips from an online purchase and desoldering the old chips out of the PCB. The other option is buying a used HD CRT at the Thrift store, a risk if everything works reliably in the long run.
Time to finally Widescreen
A replacement LCD has a reputation of Dot Crawl issues, so I start researching online for LED and Plasmas. Another headache is finding one with the now uncommon SVideo input. Component input is also starting to get scarce, most only have one input and multiple HDMI inputs. This does not help my Laser Player, PSX, N64 or even the spare RF input for the Atari 5200.

I went to
Wallymart early this morning and tested a Dreamcast with composite for a 480i view. Actually had good results on both a LCD and and LED. I know VGA would look beautiful with a Dreamcast, I'll have to bring the VGA box when I really get ready to buy one. Also I'll bring a PS2 with Component cables to be sure of no Dot Crawl. I'll compare what
Costco and
Frys have and look up all the specs. Some features to watch include 1080p, 120hz, SVideo, VGA 640x480 for the Dreamcast and of course if the HD will fit the wall unit. I am not optimistic of getting all the features in one unit, especially the rare SVideo input.
Size mattersEspecially when going from 4:3 to 16:9. The same 32" widescreen loses about a third of total viewing area. Luckily most of the non CRTs have the speakers on the bottom or back. So I can go to a larger 37" and not lose so much vertical while gaining width. 40" will fit if mounted with the edges protruding pass the edges of the wall unit.
The positive 
I hate having to stretch all my retro games to widescreen. However there are some games on the PS2 that do go widescreen and I can finally enjoy Grand Turismo and Tourist Trophy in a full 1080i widescreen pic. DVD movies with anamorphic will also get the complete screen fill, this time at 16:9. For SVideo, maybe a HDMI, Component or VGA convertor may do the trick. I already have a SVideo to VGA convertor for the N64 that does work on a computer monitor.
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I added a chart to the OP show calculations for various screen sizes of widescreens. Here is a great link that gives an instant compare for both 4:3 and 16:9 HDTVs
Compare Television Sets
http://www.cavecreations.com/tv2.cgi