No. I enjoyed Clinton and Obama's speeches, but I'm not going to base my vote on a thirty minute oration. I look at what the candidates (Obama / Romney) have done over the last four years, and the plans they've laid out for the next four — that's what will decide me.
It's very easy to get caught up in the emotion of the convention, but even if I enjoy a speech I never trust it. The next day always finds me at factcheck.org to see who was being realistic and who was telling whoppers.