Border-collapse funciona perfectamente :
#foo {margin-left:auto; margin-right:auto; border:none;width:770px; border-collapse:collapse}
#foo td {padding:0;background-color:#FFCC00;}
<table width="770" border="0" cellpadding="0" cellspacing="0" bgcolor="#FFCC00" align="center">
<tr>
<td>item</td><td>item</td><td>item</td><td>item</td><td>item</td><td>item</td>
</tr>
<tr>
<td>item</td><td>item</td><td>item</td><td>item</td><td>item</td><td>item</td>
</tr>
<tr>
<td>item</td><td>item</td><td>item</td><td>item</td><td>item</td><td>item</td>
</tr>
<tr>
<td>item</td><td>item</td><td>item</td><td>item</td><td>item</td><td>item</td>
</tr>
</table>
<table id="foo">
<tr>
<td>item</td><td>item</td><td>item</td><td>item</td><td>item</td><td>item</td>
</tr>
<tr>
<td>item</td><td>item</td><td>item</td><td>item</td><td>item</td><td>item</td>
</tr>
<tr>
<td>item</td><td>item</td><td>item</td><td>item</td><td>item</td><td>item</td>
</tr>
<tr>
<td>item</td><td>item</td><td>item</td><td>item</td><td>item</td><td>item</td>
</tr>
</table>