I agree with Sander, Adobe After Effects > Sony Vegas every day son.
Yeah, its not only Adobe program which is better than Sony, however with Dxtory its better to have Vegas than Premiere, since with Vegas you get both audio options, in premiere you only get 1, only way you get 2 is using splitting system in the drop menu (as of right clicking on your video and using audio splitter). So blah, when it comes to premiere.
I use sonyvegaspro daily can you explain the problem a little bit more? did you go into Properties and put the quality for ( Good ) or Full? because if you have it on default it will look pixelated you have to put those settings on before you render the video because there are times where i forget to set it up and it comes out fuzzy and crap always never forget when rendering the video in the preview section make sure it's on Best (Full) or Good (Full)