recommended youtube plugin for use with WP 3.0.4 & Atahaulpa 3.6.1

I’m using WordPress 3.0.04 with Atahaulpa 3.6.1. I have trouble with youtube videos in that they don’t like to hold their center format. If i I use the center button on the “kitchen” sink then I often get jsut the text of the link instead of an embedded video. The only way that works is to switch over to the HTML view and manually type it every time but it often loses the formatting. Whenever I edit or change a post I have to go back and reenter the <CENTER> tags manually.

Does anyone have a good recommended plugin or other way to fix this? I embed a lot of youtube videos and I want them to be centered but it’s very tedious to keep them there.

Thanks.