I like what you've done with#7, #21 and #22. I'm flip-flopping between them... I think I like a more modern/different font (in #21/22), or maybe it's because its uppercase. Do you have any other font choices I could look at?
I think I am starting to not like the font in #7 and #44 as much now. But I like the idea a lot, and I think the "pixels" in it work well because of the variation in letter height (vs. all caps in #22).
Could you put together an option like #22 (with the glass effect of #45) and maybe do a larger S and M? Also I'm not crazy about the M in that font.... seems like it makes it harder to read. Any quick modifications to it you can make to address that?
After taking a look at #79 again (and #82), I think they might work better just on the screen and not in print as much. They look to me something like a TV logo and I suspect I might get tired of it after a while. I'm feeling really good about #21, #45 though.