Hm, I know this is an English song and from a game, but the song "Make or Break" from The World Ends With You would make a great anime opening song. It has this techno pop beat that's fast pace and intense and also the lyrics are cool too. Another one is "Kiss kiss kiss" by BENI. Great for a romantic moment. XD That song is probably in an anime already, but I don't watch too many romantic anime shows. ^^;
You know, this is kinda weird. There's many anime songs I wished that are moreso normal songs (well, they kinda are I guess) XD: