maximillianos - 2:18 pm on Jan 16, 2005 (gmt 0) Good luck!
It has no affect on how search engines view your site. When you change registrars, you'll need to basically change your DNS servers to the new registrars DNS servers (you don't even have to do that if you don't want to). As long as your IP does not change, you are good to go. In fact, changing your IP does not really matter either. I've done that as well and never seen a change in my rankings, which are very high (#1) for my keywords.