I'm a big fan of Vegas. It really is intuitive once you have figured out the basics.
It also allows you to use VST effects on your audio, which I personally love. Gate -> EQ -> Compress. It's absolutely blissful. Good audio is important in the editing process. A simple pass through a noise filter to get rid of that buzzing sound helps. Then compress your voice to keep it all roughly the same level.
I don't think that fancy titles are extremely vital for internet videos. Ugly titles are even less necessary. Blue screens with video titles in white letters are useless and hideous for an internet video. The host already displays the title for us. So, unless you have a really good logo and enough know-how to make it look right in your final product, the caption over the video at YouTube will suffice. This is a case of "less is more."
Finally, light your videos well. If all you have are standard lamps then try to throw down some money for better light bulbs. I have a pair of $7 lamps with GE Reveal "Full Spectrum" lights in them, and they are already worlds better than plain yellow lights. You may want to study "three point lighting" and "diffusion" to at least get a basic idea of how the big guns do it. Even when I got interviewed for the local news (horror movie stuff), they had a grunt with a diffuser standing off to one side. The saying among tech types is Garbage In, Garbage Out. If you haven't lit your shot well then you're putting garbage into the editor.
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A final note about Vegas: The bundled DVD Architect is a dream come true for me, personally. At least the new versions that convert to compressed audio. That has little to do with editing video for the Internet, but can be a strong selling point if you're into burning your own DVDs.
While Sony does advertise that some professional projects have been created in Vegas, if you are looking to go really big then Adobe will probably serve you better.
but I get complimented on my editing quite a bit, I'm proud of it to be honest.
