Sounds like a fairly straight-forward script.
Just as you said.
fopen both files, fopen a newfile.
$fp1line = fgets($fp1,256);
$fp2line = fgets($fp2,256);
while(!eof($fp1) && !eof($fp2) ) {
$newline = $fp1line . "/t".$fp2line ."/n";
fputs($fpnew,$newline);
}
or something along those lines...
good luck
andre @ performance technologies