Wal-Mart Give Retailers Upbeat '05 Start &lt;p&gt;\&lt;/p&gt;&lt;p&gt; By Belinda Goldsmith&lt;/p&gt;&lt;p&gt; NEW YORK (Reuters) - Wal-Mart Stores Inc. &lt;WMT.N&gt;, the\world's biggest retailer, on Monday said December sales would\be at the top end of its outlook on better-than-expected\post-Christmas spending, sending its shares up 2 percent.&lt;/p&gt;