Where did my URL bar go?

I've been using Safari on my 10.3.9 eMac with Yahoo as my homepage since that is what I use for my email accounts. All of a sudden my google search engine and URL bar disappeared and the only way I can go to sites that aren't bookmarked already is use Yahoo's lame search engine to try and find them. I have to do the same thing to go to google's great search engine. Is Yahoo trying to dominate my web surfing experience? Any suggestions of how I can have a home page (I don't care if it's not Yahoo) that gives me easy access to my Yahoo email, Google's search engine, and a URL bar I can just type in web sites? Thanks for any help.