curl, perl, and wget? You're a madman :-) Why not do it all with wget?
wget -rl1 -A gz -nH -nd -w 2 'http://www.muhri.net/gkrellm/nav.php3?node=gkrellmall&sort=name'
Hey, you know what would be cool? We've got find2perl, we should write wget2perl. That would be cool :-)