Ikelite Underwater Housing

So I posted about digital camera recommendations a while back and nearly everyone was in favor of the Nikon D70. So
I bought one. Now I need to find an underwater housing
for it so I can dive and shoot. The best I’ve found so far is from Ikelite, and I like what I see here. But as usual
with good underwater housings, it’s pricey. I wonder if anyone out there knows of anything better?