I like the color scheme of #158. I would probably try to avoid black, and replace with gray and white. It may also be worth trying some text style logos without a screen, since there are already a lot of those.
I like the glossy look of #162. I don't think the circles work, so you may want to try some other options. I like the font of #163, and I think it might look good if you incorporated some of the elements into the text. Possibly with a glossy look similar to #162.
You're really on the right track with #165. I like the glossy look, and the font looks great. I would recommend trying something other than the diamonds for the initials. Also, possibly some shading to the text and darker blue for the second line.
I'm not sure that the shapes are working. So it may be worth trying to display the initials another way. Also, I would recommend shading the text more like #100 or #134.