I'd say it's so close that is doesn't matter. Once you experience a 92 or 120 inch front projection system a 50 or 60 inch TV suddenly seems as small as a 19 inch. Front projection is such a better HT experience, that even 65 inches isn't enough. It's the whole gestalt thing. Sure a 1080i or 720p display might have more detail, but truthfully the two projectors I've cited (and I mentioned two VERY SPECIFIC models on purpose) do 480p so well that (to me) it simply does not matter.
BTW, everyone who's seen my set-up says they prefer it to any plasma (even the big 60 inchers). Take a moment to digest that comment. My friends (non-technical minded people) are saying this entry-level projector meets or beat the best that they have seen. It is simply that good. The PQ really is jaw dropping. People just do not know what is possible with $1.5k worth of front projection. Most said if they could deal with the install (you have to mount a projector and a screen, calibrate, focus, align, and manage some light control). But it really is worth it if you are technically inclined. Else just get a TV (RPTV or plasma) and "plop" it down in your living room, not installation needed - they're all-in-one units. This is one of the dividing lines. The front PJ install it a little more involved. But if you can level a TT and align a cartridge, I think you are qualified to do this.
As for ambient light, let me say this. If you can read a newspaper, then there is too much light. Plain and simple. These are for serious HTs. Any ambient light failing on the screen is going to kill your picture. This is one of the reasons why in addition to heavy drapes and blinds, most home theaters do not have white walls. White walls bounce around an aweful lot of ambient light. And some of this is going to fall on your screen. White walls are so 90's, anyway. ;-) So take your wife and use this as an excuse to go to Home Depot or Lowes and get some paint.
BTW, everyone who's seen my set-up says they prefer it to any plasma (even the big 60 inchers). Take a moment to digest that comment. My friends (non-technical minded people) are saying this entry-level projector meets or beat the best that they have seen. It is simply that good. The PQ really is jaw dropping. People just do not know what is possible with $1.5k worth of front projection. Most said if they could deal with the install (you have to mount a projector and a screen, calibrate, focus, align, and manage some light control). But it really is worth it if you are technically inclined. Else just get a TV (RPTV or plasma) and "plop" it down in your living room, not installation needed - they're all-in-one units. This is one of the dividing lines. The front PJ install it a little more involved. But if you can level a TT and align a cartridge, I think you are qualified to do this.
As for ambient light, let me say this. If you can read a newspaper, then there is too much light. Plain and simple. These are for serious HTs. Any ambient light failing on the screen is going to kill your picture. This is one of the reasons why in addition to heavy drapes and blinds, most home theaters do not have white walls. White walls bounce around an aweful lot of ambient light. And some of this is going to fall on your screen. White walls are so 90's, anyway. ;-) So take your wife and use this as an excuse to go to Home Depot or Lowes and get some paint.