Regarding frameless:
There have been few manufacturers touting "frameless" monitors and TVs. But once the hype is over and the units are released into the wild, they usually end up having 1cm or more frame. I think LG was one of the first to get some flack for this. They had marketing pictures where it shows pretty much non-existant frame, but in reality the image is photoshopped, and there's an "inner frame" which makes the actual wasted space 5 times larger.
Alternatively (especially the case with Philips TVs), they use the images of 55" models (which might not even be photoshopped) to all the models of the specific serie, which makes the frame look relatively thin, but once you unpack the 32-42" models, it's now considerably bigger when compared to the overall size.
If any manufacturer touts a "frameless" design, then check the real user footages from youtube videos/unboxings, they usually show the actual case.
Regarding nice looking TVs in general:
Philips have a "Design Line", which focuses on aesthetics. They look nice, but apparently they also always come with a glass front. While some people actually like this, personally I detest them, as they bring along more reflections, too. And a price premium, for that matter. Design line is separated from the normal series with the moniker PDL, instead of PFL (for example: 42PFL6907T vs. 42PDL6907T). Also, many Philips TVs have the unique "Ambilight" feature (check youtube), which makes for a nice addition to the overall impression.
With LG, I think the LM669 seems quite nice.
Regarding TV, resolution, gaming:
While higher resolution is nice indeed, it also requires more horsepower from the rig, too. And like said before, own sight and viewing distance has a huge impact for the actual need for the higher resolutions.
Regarding plasmas:
Sorry, I have very little knowledge of them. Can't give recommendations on those.
