I need an ocean sound loop, at least a minute long (preferably), with seagulls in the background. My band is playing somewhere in a few weeks, and I want the sound in the background of one of the songs we're going to do. But I don't want one that repeats like every 5 or 10 seconds.

You don't seem to be getting much help here. You might try the music forum...

I found this site when looking for looping music for a level. Theres some free samples that might be helpful.
Click

Actually, I "found" one that was like over 6 minutes. And it opens exactly how I wanted, certain parts of it add to the dynamics of the song in exactly the right spots. Kinda cool when stuff works out so perfectly.